Catalogo Completo per la Scuola – Educational products catalog

Table of Contents

141

140

139

Math - Time & Money

139

Math - Geoboards

138

Math - Number Street & Line Master

136-137

Math - Match™ Learner

133-136

Math - Games

132-133

Math - Inflatables

130-131

Math - JumpingJoey’s NumberLine®

118-129

NTA - Microslide®

116-17

Earth Science - Raised Relief Maps

115

Earth Science - World Maps

115

Earth Science - United States Maps

112-114

Earth Science - Geography

1108-111

Earth Science - Fossils

106-107

Earth Science - Bulk Rocks & Minerals

104-105

Earth Science - Classroom Projects

95-103

Earth Science - Rock Kits

88-94

Earth Science - Geology

87

Earth Science - Oceanography

82-86

Earth Science - Meteorology

75-81

Earth Science - Astronomy

69-74

Earth Science - Environment

66-68

Earth Science - Videolabs®

64-65

Earth Science - DVDs / Videos

54-63

Science - Physical Science

48-59

Science - Chemistry

44-47

Science - Botany

39-43

Science - Zoology

33-38

Science - Biology

26-32

Science - Health

18-25

Science - Human Anatomy

16-17

Science - Teaching Tank

4-15

Posters

2-3

Knowledge retriever

1

Quick Reference

How to Order:

We Guarantee Our Products!

We pride ourselves on providing quality products. However, in the event that a defective product is inadvertently delivered, we will strive to correct the problem as quickly and efficiently as possible (free from defects in material and workmanship) for a period of one year. Please contact our Customer Service Department for return authorization. We will accept returned merchandise only when accompanied by a valid Return Authorization Number.

-Our hours: 8:00 a.m to 5:00 p.m, Monday - Friday Mountain Time.

-You may submit your order by phone, fax, or mail.

Order Toll-Free: 1.800.289.9299 FAX: 970.484.1198 Phone: 970.484.7445 Or send to: American Educational Products LLC P.O Box 2121 Fort Collins, CO 80522

Shipping All shipments are ex-works our factories in Fort Collins, CO or Chippewa Falls, WI. We will ship your order in the most economical way. Normally, we will ship via UPS or freight collect.

Hazardous Materials: UPS will assess a $25.00 surcharge for products containing hazardous materials.

These products may only be shipped within the 48 contiguous states via UPS Ground.

Please note each product with the HAZ-MAT symbol will be subject to these fees.

Hubbard Scientific will evaluate each order and ship in the most efficient and economical way.

Customer Service: If there is a problem with your order, please contact our customer service department immediately. To ensure proper credit, please do not return any materials until you have received authorization to do so. Check each shipment carefully, as all materials to be returned for credit must be unused, unstamped, and in saleable condition. For more detailed information, contact our customer service department.

In accordance with CPSIA 2008 we have placed warning labels whenever required.

Whenever a particular warning applies you will see the symbol and number placed near the product. Please refer to this chart for the warning description in full.

WARNING: CHOKING HAZARD This toy is a marble.

Not for children under 3 yrs.

Math - Pattern Blocks

DC Crank Generator Magneto Generator

Math - Manipulatives

7-1853

The DC Generator is a versatile generator and a perfect power supply for many experiments! The pistol grip style handled device can be utilized with almost any experiment requiring up to 12-volt DC current. Housed in tough clear plastic, the unit is not only functional but costs about half the price of similar models. The generator can be used as a hand generated flashlight due to the mounted lamp on the end. One may also use the binding post to connect an outside electrical circuit. 6-1/2” 2-1/2” x 4-1/2”; .5lb.

DC Crank Generator 7-1253

Perfect for classroom demonstrations showing the effect a load has on a power source, the field of this magneto is generated by a single Alnico magnet with a strong magnetic flux density. Capable of producing higher voltages than cobalt-steel magnets, the generator is mounted on a 7-5/8” x 12” wood base with an incandescent lamp and socket used as a load. Two binding posts are placed on the board for attaching other loads. It comes with instructions for use. 16” x 9” x 6”; 6lbs.

Magneto Generator WARNING: CHOKING HAZARD

WARNING: CHOKING HAZARD

This toy contains a marble.

Not for children under 3 yrs.

Small parts. Not for children under 3 yrs.

WARNING: CHOKING HAZARD Children under 8 yrs can choke or suffocate on uninflated or broken balloons. Adult supervision required. Keep uninflated balloons from children. Discard broken balloons at once.

WARNING: Possible entanglement or strangulation injury.

This toy contains a cord and/or string.

Not for children under 3 yrs.

WARNING: This toy contains functional sharp points or sharp edges.

Not for children under 4 yrs.

77-84

142-143

For our helpful alpha index see pages...

Math - Fraction Bars®

52-76

This toy is a small ball.

Not for children under 3 yrs.

46-51

Labware

WARNING: CHOKING HAZARD

Light & Sound

144-145

44-45

Math - Decimal Squares®

41-43

Heat

146-147

32-40

Gas & Liquids

147-149

Force & Mass

Math - Workbooks

31

Life Skills

30

Magnetism

WARNING: This product contains small magnets. Swallowed magnets can stick together across intestines causing serious infections and death. Seek immediate medical attention if magnet(s) are swallowed or inhaled. Not for children under 3 yrs.

Static Electricity

WARNING: CHOKING HAZARD This toy contains a small ball.

Not for children under 3 yrs.

20-29

150

18-19

Electricity

Language Arts

Chemistry

151-193

14-17

Early Childhood / Physical Education

2-14

Earth Science

221-228

1

Biology

Index

New! Table of Contents

featured products

• NEW in 2012!

Projector of Magnetic Line-of-Force

Stethoscopes Stethoscopes are used to listen to chest sounds. Use these in combination with our Aneroid Sphygmomanometer, 7-1371, while working with blood pressure.

7-1375

Stethoscope - Blue

Stethoscope - Green

Stethoscope - Red

Stethoscope - Yellow

7-1348 Stethoscopes, Set/4

The Projector of Magnetic Line-of-Force may be used to show magnetic line-of-force of various permanent magnets; while the Magnetic Line-of-Force Viewer demonstrates steric magnetic field and formation of its lines-of-force using iron powder in liquid immersion.

Special features of the Projector of Magnetic Line-of-Force include simple construction, easy handling, sharp image, and evident result.

May be observed directly or by means of projection. Simply shake the container thoroughly before use, place it on a magnet, and linesof-force will be seen immediately. To use the Magnetic Line-of-Force Viewer, the instrument is rotated and shaken up and down, until the iron powder is well mixed with liquid. Next, a magnet or electromagnet is pushed into the hole and lines-of-force may be clearly seen.

7-497

Projector of Magnetic Line-of-Force

KEY CHAIN LASER POINTER This new 2 3/4” laser pointer is available in three colors (red, purple & black) and comes with 5 different heads that project different shapes: Standard Point, Arrow going through two hearts, Hand in the shape of Victory/Peace, Six Point star with point in center and Cascading Boxes with point in center. Laser light is red. Key chain is included for added convenience.

7-1321

Key Chain Laser Pointer

Van de Graff Generator This excellent quality generator consists of an aluminum collector sphere (mounted above the neoprene belt) and a sturdy base with removable terminal housing. The clear belt housing tube allows for easy viewing of the moving parts. 250,000 volt potential.

7-511

Van de Graff Generator (8” x 11” x 24”; 10lbs)

steric demonstrator of magnetic lines of force Used for the demonstration of the existence of magnetic field as well as the spatial distribution of its line-of-force. Directions for use included.

7-503

Steric Demonstrator of Magnetic Lines of Force

new!

1

• Dissecting pans and cases

7-350

7-355

· 7-351-1 · 7-370

· 7-371

· 7-371-a

· 7-350-1

Dissecting Cases Keep track of classroom dissection instruments easily and neatly! The heavy-duty leatherette cases will hold 6-12 essential dissection instruments. The molded plastic case’s capacity is variable. The cases are an excellent product to help store, protect, organize, and display tools, helping to cut down on valuable classroom time. Instruments not included.

7-370

Leatherette Case, 6 Loops, 7 x 3in

Leatherette Case, 12 Loops, 7 x 3-1/2in Dissecting Case, Molded Plastic, 6.57 x 3-1/4in

· 7-355-1

Dissecting Pans A Biology Lab Staple! Made to last, these dissecting pans are great for general use.

Coming in several different sizes and styles, they are available with or without wax. Each pan has smooth, rolled edges and is stackable. When resurfacing, put the pan on a hot plate to melt the wax. Not dishwasher or microwave safe. Do not heat wax above 250˚.

Aluminum with wax; 11“ x 7”x 1-1/2”; .44lbs.

7-350

Dissecting Pan, Aluminum w/ Wax (11.25 x 7.5 x 1.5 - 1.1lbs) Dissecting Pan, Aluminum w/ out Wax (11.25 x 7.5 x 1.5 - .38lbs)

Dissecting Pan Cover Made to cover standard 7” x 11” dissecting pans, the clear cover offers a way to enclose your dissection project between classes. A built-in recession in the top allows for secure stacking of multiple pans. The pan is also available with blue pads. 7” x 11” x 2” 7-350-LID

Dissecting Pan Cover

Dissecting Pan w/ Cover and Off White Pad, Aluminum (11.25 x 7.5 x 1.5 - 1.4lbs)

Dissecting Pan, Enamel w/ Wax (15.75 x 9.75 x 2 - 1lbs)

Dissecting Pan, Enamel w/out Wax (15.75 x 9.75 x 2 - 1lbs) · 7-370-lid

Dissecting Black Wax Only (10 x 5 x .5 - 1lbs - Wax Only) Dissecting Black Wax Only (12 x 6.25 x 3 - 5lbs - Wax Only)

2

biology

Dissecting Pan, Aluminum Large w/ Wax (13 x 9.5 x 2 - 2lbs) Dissecting Pan, Aluminum Large w/out Wax (13 x 9.5 x 2 - .5lbs)

Dissecting Pan, Aluminum w/ Tie Clips and Wax (11.25 x 7.5 x 1.5 - 1.1lbs)

· 7-350-set

• Dissecting tools · 7-392 · 7-372

· 7-393 · 7-386

· 7-351-w

· 7-387

· 7-m-100-m · 7-394 · 7-1317

Scalpels & knife Strong razor-sharp scalpels and knives are staples of any dissection lab. Made of stainless steel or chrome, these tools give students and teachers greater cutting ease, slicing through delicate and tough tissues alike. The sturdy handles provide a firm grip.

7-372

Cartilage Knife, Stainless Steel, 1-1/2” Blade

· 7-1316 · 7-1318

Rulers, etc.

Scalpel, Chrome, 1-1/2” Blade

Durable and easy to clean, these are scaled in both Metric and English units.

Scalpel, Stainless Steel, 1-1/2” Blade

7-392 Ruler, 6”

Scalpel Handle #4, Chrome Handle Only w/ Screw

Ruler, 12” Ruler, 12”; Wood w/ Metal Edge

Replacement Blades 7-396

Replacement Blade #22 (for use w/ a #4 handle)

N Hardwood Meterstick - NEW! Fiber Glass Tape Measure, English/Metric 60”/150cm Student Protractor, Clear, Each Tape Measure, 3 Meter, Each

· 7-401

· 7-403

· 7-402

Forceps Needles Perfect for delicate dissection, separating and manipulating tissue without tearing, these dissection needles come in different styles for various applications.

7-380

Dissecting Needle, 5” Straight w/ Metal Chuck*

Dissecting Needle, 5” Bent w/ Metal Chuck* Teasing Needle w/ Wooden Handle, 5-1/2” Straight; Ea.

Teasing Needle w/ Wooden Handle, 5-1/2” Straight; Gross

Teasing Needle w/ Wooden Handle, 5” Curved; Gross

7-384

Forceps, Chrome, 4-1/2” w/ Pin, Medium Point Forceps, Stainless Steel, 4-1/2” w/ Pin; Medium Point

Forceps, Cartilage; 5-1/2”; Chrome

Forceps, Plastic; Blunt; Yellow; 4”

Forceps, Plastic; Pointed; Yellow; 4”

Forceps, 4-1/2” No Pin, Nickel Plated Steel; Sharp Tip

biology

Teasing Needle w/ Wooden Handle, 5-1/2”; Curved; Ea.

Give your students a precision grip to make dissection easier. Specialized for different dissection purposes, the chrome or stainless steel forceps are long lasting and simple to clean. Pins serve as a guide in dissection, while a bent tip allows students a good view of what they are doing. Special cartilage forceps permit heavy-duty handling and gripping.

3

• Dissecting sets

Dissecting Set This deluxe set comes includes: ·Zipper Closure w/ Velvet Interior Scalpel Handle #3 ·3 Replacement Blades #10 ·Cartilage Knife w/ 1-1/2” Stainless Steel Blade ·5-1/2” Surgical Scissors ·4-1/2” Stainless Steel Iris Scissors ·4-1/2” Medium Point Stainless Steel Forceps ·4-1/2” Stainless Steel Tissue Forceps ·Stainless Steel Male Probe and Seeker ·Dissecting Needle w/ Stainless Steel Chuck-Bent Tip ·Dissecting Needle w/ Stainless Steel Chuck-Straight Tip ·6” Ruler ·6 “T” Pins ·9-1/4” X 7-1/2”; .33lb 7-400

Dissecting Set, 10 Piece, Deluxe Case

Dissecting Set

Dissecting Set The dissection kit contains: ·6 loop leatherette case ·3” Straight Glass Dropper ·4-1/2” Chrome Forceps w/ Pin ·Stainless Steel Scalpel ·Stainless Dissecting Scissors ·Straight Wood Teasing Needle ·Curved Wood Teasing Needle ·Ruler ·7” x 3”; .22Ibs

Chrome plated dissecting set includes: ·#4 Scalpel Handle ·Replacement Blade #22 ·Probe and Seeker ·2 Teasing Needles-Bent And Straight w/ Wood Handle ·3” Medicine Dropper ·Dissecting Scissor ·5-1/2” Cartilage Forceps ·6” Plastic Ruler ·6 Loop Leatherette Case ·7” X 3 1/4”; .33lb

7-376

7-399

Dissecting Set, 7 Piece, Leatherette Case

Dissecting Set, 8 Piece, Leatherette Case

Scissors A variety of scissors equals more possible dissection procedures! Two metals, 2 lengths, and 2 tips give your students a good selection of scissors to use for their job.

7-381 Scissors, Stainless, 4-1/2”, Sharp/Blunt Tips (not shown) Scissors, Chrome, 4-1/2” Sharp; Open Shank

· 7-388 · 7-398

4

biology

· 7-389 · 7-398-1

Scissors, Stainless, 4-1/2” Sharp; Open Shank

Scissors, Stainless, 5-1/2”,Sharp/Blunt; Closed Shank

Scissors Iris, Stainless, 4-1/2”, Sharp/Sharp; Closed Shank

Scissors Iris, Stainless, 4-1/2”, Curved, Sharp/Blunt

INSECT PINS Insect pins are perfect for mounts and displays! They are reusable, long-lasting, and ideal for displaying most organisms of the class Insecta.

7-365-01 Stainless Steel, Size 000, 100/pk Stainless Steel, Size 00, 100/pk Stainless Steel, Size 1, 100/pk Stainless Steel, Size 3, 100/pk Stainless Steel, Size 5, 100/pk Stainless Steel, Size 7, 100/pk Black Steel, Size 00, 100/pk Black Steel, Size 0, 100/pk Black Steel, Size 1, 100/pk Black Steel, Size 2, 100/pk Black Steel, Size 3, 100/pk Black Steel, Size 7, 100/pk

Complete Dissecting Kit We have done the planning and assembled the necessary materials for you! The kit includes: ·“How to Dissect” manual ·1 set of specimens including: ·Grasshopper (2” x 1”) ·Clam 3” x 2”) ·Frog (3-1/2” x 3-1/2”) ·Perch (6” x 2”) ·Starfish (4” x 4”) ·Worm (6”); a 7 x 11” ·Aluminum dissecting pan with wax Complete dissecting set including: ·Medicine dropper ·Forceps ·Scalpel ·Scissors ·2 teasing needles ·6” ruler, and case ·15 Pieces ·15” x 11-3/4” x 5”: 5 lbs.

7-2000-33 Complete Dissecting Kit

· 7-363

Specimen set only Already have the instruments? We have the rest! A variety of specimens consisting of some members of the kingdom Animalia. The specimens are 1 of each: ·Grasshopper (2” x1”) ·Crayfish (4” x 1”) ·Clam 3” x 2”) ·Frog (3-1/2” x 3-1/2”) ·Perch (6” x 2”) ·Starfish (4” x 4”) ·Worm (6”) Packed in Bio-Neat, a safe alternative to formaldehyde. A glass jar and lid are also included. 1.32 lbs, 8”x4”x4”; 30 oz jar

· 7-395

Dissecting Instruments Haven’t found the tools you need yet? These various high-quality tools are designed for more specialized jobs.

7-363

Dissecting Pins, ”T”-Form, Length 50mm, pk/10 Probe & Seeker, Chrome 6”

7-2000-34 Specimen Set Only

Inoculating Needles Great for bacteriological and other types of culture work!

7-903-8 Inoculating Needle w/ Metal Handle Nichrome Needle; 24 gauge x 7cm L Inoculating Needle w/ Metal Handle Nichrome N

biology

5

• microscope and Slide making kits

microscope Kit

Advanced Slide making Kit Everything needed to prepare and stain slides is provided in this kit. Includes: ·Specimens (Fabric, Thread, Dust, Cork, Foam, and Salt) ·2 Staining Specimens (A Corn Section and Planaria) ·Preserved Insects (Honey Bee and Cricket) ·Acetone (28ml) ·Xylene (112ml) ·2 Stains: Fast Green and Borax Carmine (28ml) ·Differentiator (28ml) ·Isopropyl Alcohol (448ml) ·Mounting Medium (28ml) ·72 Microscope Slides ·100 Cover Slips ·110 Labels ·A Lens Paper Book ·2 Medicine Droppers ·2 Single-Edge Razor Blades ·A Magnifier ·A Concave Microscope Slide ·3 Vials for Collecting Specimens ·Fine Forceps ·A Spot Plate ·A Clear Plastic Ruler ·1 Pair of Gloves (Size 8) ·2 Prepared Slides ·Instruction Booklet Entitled “Adventures with a Microscope" ·17” X 16-1/2” X 6”; 1lb 7-2000-32

Advanced Slide Making Kit

Packaged in a retail box, the microscope kit is perfect for simple use at school and home. Includes: ·3 blank slides ·1 prepared slide ·6 cover slips ·6 blank labels ·1 dropper; gum media ·Comprehensive user guide featuring use and care for the microscope and Preparing and viewing slides; Growing and observing crystals, etc.; ·4-3/4” L x 2-3/4” W x 8-18” H 7-1367 Microscope Kit

Student Slide making Kit This kit allows students to prepare their own microscope slides. Includes: ·12 Glass Microscope Slides ·100 18mm X 18mm Cover Slips ·Mounting Medium, Dropper ·Comprehensive Manual to Guide You Through Slide Preparation ·4” X 2” X 2”; .55lbs 7-2000-30 Student Slide Making Kit

Intermediate Slide making Kit

6

biology

The kit provides everything needed to prepare slides. Includes: ·72 Glass Microscope Slides ·100 Glass Cover Slips: ·Specimens (Fabric, Thread, Dust, Cork, Foam, and Salt) ·Self-Adhesive Labels ·Single Edge Razor Blades; Lens Paper ·2 Medicine Droppers ·Mounting Medium ·Isopropyl Alcohol ·13-1/2” X 9-3/4” X 3”; .55lbs 7-2000-31 Intermediate Slide Making Kit

• microscopes

1

2

3

4

5

6

1. Monocular Microscope

4. Basic Compound Microscope

A compact and portable field trip / lab scope. This small rugged scope allows quick viewing of 3-D specimens. Features simple focusing and easy one eye viewing ·Fixed 2X objective for 20X magnification. ·Compact 6-1/2" high with 4-1/2 x 3-3/4" base. ·Light gathering optical system requires no extra light for general use.

This unit has a 10X wide field and a locked-in eyepiece mounted at a 45 degree angle for comfort. The triple nosepiece features 4x, 10x, 40x objectives. This scope also has low-position coarse focusing with a built in slip clutch to prevent gear damage. The built in 110V illumination is great for viewing all types of specimens. Middle School/High School.

7-1373

7-1358 Basic Compound Microscope

Monocular Microscope

5. Student Prism Microscope This microscope is designed to meet the demands of laboratory microscopy. Like the 7-1363, the body design includes plastic plating over the metal base for less heat conduction allowing more comfort for the user. Binocular microscopes have 2 eyepieces making them higher powered compound microscopes. The 2 eyepieces view through a single objective lens. This microscope ,also, offers multiple objective lenses of varied magnifications.

Created specifically for beginners, this microscope is ideal for young students. It is a perfect microscope for lab or field use. Some special features for young scientists include: sturdy construction of cast metal, no knobs to break or lose, and a chemical-resistant finish. The microscope also incorporates a built-in light-gathering prism for simple lighting and a sliding barrel focus adjustment which prevents accidental impact with slides. It comes with spring stage clips, a 10x eyepiece and a 4x objective lens for good quality viewing. 4’ x 5.5” x 10.5”; 2.5lbs.

7-1364

7-1304 Prism Microscope, Student

2. Research Binocular Microscope

Research Binocular Microscope

3. Stereo microscope

6. Research Monocular Microscope This microscope offers the same optics as larger professional scopes. The body design includes plastic plating over the metal base for less heat conduction allowing more comfort for the user.

Monocular microscopes are compound microscopes with a single eyepiece including multiple, selectable objective lenses of varied magnifications; 4X, 10X, 40X, 100X

7-1359 Stereo Microscope

7-1363

Research Monocular Microscope

biology

This double powered Stereo Microscope is perfect for the Classroom. This will give students and researchers depth of field and illumination control needed for dissection and mineral observation.

The two objectives are enclosed to create a stereo effect. Dual illumination provides top or bottom lighting. Includes a dust cover.

7

• microscope accessories

7-1305-1

7-1305-3

7-1305-2

7-1305-4

Microscope slides - Glass Simple, inexpensive, and good quality, these glass slides have smooth ground edges. 25.1mm x 76.2mm: 1.01-1.2mm thick.

7-1305-1 Microscope Slides, Plain, 144/box Microscope Slides, Frosted, 144/box Microscope Slides, Single Cavity, 144/box Microscope Slides, Double Cavity, 144/box Microscope Slides, Plain, 1 dz/pk Microscope Slides, Single Cavity, 1 dz/pk

Microscope Cover Slips - Glass

Microscope Slides, Double Cavity, 1 dz/pk

Made of pre-cleaned glass; don’t forget to order when purchasing microscope slides! #1 thickness = .13-.17mm, #2 thickness = .17.25mm 7-1305-20

Microscope Slides, Economy Quality, 144/box

Microscope Slides - Plastic

A less expensive version of the glass slides, these disposable slides are great for younger students. .018-.022 thickness.

7-1305-15 Microscope Slides, Plastic, 3”X1”, Gross

Cover Slips - PLASTIC A less expensive version of the glass slips, these disposable covers are great for younger students. .018-.022 thickness.

7-1305-9 Cover Slips, Plastic, 22mm x 22mm, 100/box Cover Slips, Plastic, 22mm x 22mm, 1000/box

Microscope Slide Clamp Heavy gauge nickel-plated steel clamp. 6” x 1.5” 7-G36 Microscope Slide Clamp

Pocket Microscope (Illuminated 30x) An easy to focus 30x pocket microscope, this is great for indoor or outdoor use. The protective case is included. Requires 2 “AA” batteries which are not included.

8

biology

7-1389

Pocket Microscope

•molded specimens • prepared slides

· 7-1355 · 7-1351

Prepared Slide Sets - Glass Available in 4 different sets with each set containing 10 slides. Each slide is clearly identified. The slides are packed in a plastic storage box with slits for organization and safe storage. 3.25 x 2 x 2.25, .25 lbs 7-1350 1) Fowl Feather 2) Cow Hair 3) Cat Hair 4) Pig Hair 5) Blood Smear of Frog 6) Peacock Feather 7) Fish Squama 8) Wool Hair 9) Dog Hair 10) Rabbit Hair $15.45

7-1352 Insect Slide Set 1) earthworm section 2) tapeworm section 3) leech section 4) honey bee leg 5) ant section 6) honey bee mouth 7) housefly foot 8) housefly wing 9) butterfly squama 10) insect compound eye $15.75

7-1351 Botanical Slide Set

1) plant root 2) winter jasmine leaf 3) pine leaf 4) moss antheridium 5) fern leaf 6) pine stem 7) epidermal cell onion 8) pollen 9) corn seed 10) wheat seed $15.45

7-1353 Amphibians & Frogs Slide Set 1) frog cleavage sag sec 2) frog gastrula late 3) frog showing spermery 4) frog egg single celled 5) frog blood smear 6) fish squama 7) skin of frog 8) fresh water fish gill 9) frog epidermal 10) frog egg 2-celled $15.10

Molded Plastic Specimens An ideal tool for allowing your student to become familiar with several facets of nature! The specimens are preserved in a clear acrylic material which will last a lifetime. There are 5 different sets, each containing 4 specimens.

7-900

Molded Plastic Specimens, Plant Life, Set/4

Molded Plastic Specimens, Life Cycle, Set/4

Molded Plastic Specimens, Scorpion & Spiders, Set/4

Molded Plastic Specimens, Insects, Set/4

Molded Plastic Specimens, Sea Life, Set/4

Bug Viewer, Magnifying

Prepared SLIDE SETS - PLASTIC

Great for field trips, the bug viewer allows for close, critical examination of bugs. It is so inexpensive, each student can have their own. With a 2.5X acrylic lens, bugs are magnified to show fine details. The grid system incorporated into the 5cm square bottom opening can be used as a gauge to compare size and proportions.

Safe for young students, the 3 sets comes with 10 slides each. The plastic slides are packed in a plastic box for safe keeping.

7-1354 Prepared Microscope Slides, Plastic, Set/10, Animal

Prepared Microscope Slides, Plastic, Set/10, Insects

Prepared Microscope Slides, Plastic, Set/10, Plants

7-1017

Bug Viewer, Magnifying

Insect Net This nylon insect net extends from 18” to 32” with a 48” long conical net mounted on a 14” ring.

7-1402

Insect Net

biology 9

• lung demonstrations

Plastic Lung Apparatus Similar to the 7-1203-12 but with one balloon for easier viewing, the new plastic lung apparatus demonstrates how the lungs work. As the “lung” fills with air, through relaxation and contraction of the diaphragm muscle, students visualize how our lungs work. A sturdy rubber sheet replicates the diaphragm. As the rubber sheet is pulled downward, the pressure within the chamber causes the “lung” to expand and take in air. When released, the “lung” will deflate. Lesson plan is included; 8-1/4” x 8-1/4” x 8-1/4”; 1.3lbs.

7-1203-1 Plastic Lung Apparatus

Lung Demo Kit

Plastic Lung Apparatus W/ 2 Balloons

Allow students to build a demonstration model of a human lung and learn the basic concepts of respiratory physiology! The kit includes a transparent plastic container, Y-tube “trachea”, balloon “lungs”, rugged rubber sheet “diaphragm” and the necessary hardware and instruction sheet.

10” dia; .02lb.

Show how the lungs are emptied and filled with air by relaxation and contraction of the diaphragm muscle! Two balloons attached to a Y-tube simulate the lungs. The chest cavity is represented by a half-gallon plastic bell jar with an open top and stout rubber sheet which acts as a diaphragm. As the diaphragm is pulled downward, the atmospheric pressure is lowered inside the chamber causing the lungs to expand, taking in air. When the diaphragm is released, the lungs deflate. Includes lesson plan. 8-1/4” x 8-1/4” x 8-1/4”; 1.3lbs.

7-1203-12

7-1203-2

10

biology

lung replacement parts 7-1203-3

Lung Replacement Rubber Dam, 10” Dia; .02lb

$5.50

7-1203-4

Lung Replacement Balloons, 9”; .01Ib

$0.40

7-1203-4-dz

Lung Replacement Balloons, Dozen

$3.50

7-201-1

Lung Replacement Dome, Plastic , Open Top, 10” x 10” x 11”;.03lb

$14.15

· 7-201-1

Osmosis Apparatus (Double Thistle Tube Type w/ Jar & Support) The Osmosis Apparatus is used to demonstrate the principles of osmosis. The double thistle tube with a porous membrane is held upright with the membrane covered end in a jar of water. When a sugar solution is added at the top of the tube, the liquid will rise in the tube.

Included are: a battery jar, thistle tube with membrane, and a stable support. A well written instruction sheet will guide you through the 2 suggested experiments. 24” x 8” x 7”; 2lbs.

7-1501-7 Osmosis Apparatus, Double Thistle Tube Type w/ Jar & Support Osmosis Apparatus, Clamp Only Osmosis Membrane - Only

• stethoscopes

Stethoscopes Stethoscopes are used to listen to hear and chest sounds. Use these in combination with our Aneroid Sphygmomanometer, 7-1371, while working with blood pressure.

7-1375

Stethoscope - Blue

Aneroid Sphygmomanometer This economical sphygmomanometer is sturdy and dependable. It measures blood pressure with a Velcro arm cuff and an easy to read dial. It comes with its’ own vinyl storage case.

7-1371

Aneroid Sphygmomanometer

Stethoscope - Green

Stethoscope - Red

Stethoscope - Yellow

7-1348 Stethoscopes, Set/4

BLood Pressure Set

7-1882 Blood Pressure Set Each

Bowle’s Stethoscope Exceptional Listening Ability! This economical stethoscope is light and adjustable with a sensitive chest piece. Ideal for many basic diagnostic uses. 7-3/4” x 4” x 1”; .11Ibs. 7-1872

Bowle’s Stethoscope

biology

This Student Blood Pressure Kit will hold up in repetitive classroom use! The durable arm cuff closes with Velcro® and has a large easy to read gauge. The Stethoscope is light weight and adjustable with a highly sensitive chest piece for easy listening. Ideal for basic diagnostic uses. Comes with a vinyl storage case.

11

• biology models

Plastic Skull Model This detailed Human Skull Model is great for all ages! The life-sized model features a spring mounted mandible, a detachable skull, and three removable teeth. Included is a detailed key.

7-1391

Plastic Skull Model

Skeleton Model (34”, 17”) A 34” and 17" version of our life size model, it gives schools the opportunity to include the human skeleton in the classroom at half the expense and size! A detailed key is included.

7-1387

Skeleton Model 17”

Skeleton Model 34”

Skeleton Model w/ Nerves 34” Much like our life size skeleton model, students can explore this model as a visual aid for physiology. The model features nerve roots, spinal cord, the vertebral artery, cartilage highlighted in green, and a herniated disk. A detailed key is included.

Skeleton Life Sized Model

7-1413 Skeleton Model w/ Nerves 34”

7-1412

Skeleton Life Sized Model

Brain Model Investigate the anatomy of the brain with this life sized model! Focusing on all major parts of the brain, students will become familiar with how the brain looks as well as how it functions.

The model is made of plastic and comes with a base. A detailed key is provided. 8 pieces.

7-1414

$346.30

12

biology

The life sized skeleton model is designed as a visual aid for teaching physiology. It helps students understand the relationship between the human body and its’ skeleton. It can also be used for studying the morphology of bones and construction of joints. The skeleton is of an adult male in a standing posture. The joints of the upper and lower extremities are movable.

The spinal column shows the spinal cord, nerve exit, vertebral arteries, and a herniated disc. It is constructed of rugged plastic with a heavy metal base for an extra measure of stability. Included is a detailed key. 67" w/ stand.

Brain Model

• biology models

¡ 7-1421

¡ 7-1422

Eye Model The eye model is enlarged four times to give students a closer look at the human eye!

This model shows blood vessels, muscles, optical nerves, and other features of the human eye. It rests on a sturdy base and can be dissected horizontally to expose the sclerotic, choroids, and retina. The cornea and iris are detachable. Included is a detailed key.

7-1417 Eye Model

Mini torso models Ear model (Small) This is a smaller and more affordable ear model than the 7-1418. It explores the same educational content and includes a detailed key.

7-1416

Learn human anatomy with these torso model teaching tools. Show all of the major systems: respiratory, circulatory, digestive, nervous and urinary systems; also feature the musculature system. The lungs, heart, liver, stomach and intestines are removable for further examination.

A detailed colored key is included for reference. Hand-painted.

7-1421

Mini Torso Model, 12 pcs, 42cm

Mini Torso Model, 11 pcs., 25cm

Ear model (Large) Much like our small ear model the larger model is enlarged four times. Attributes to this model are the ability to dissect portions of the ear into six parts. Portions that come apart are the tympanic membrane with the malleus, incus, and attached stapes. The petrous portion of the temporal bone, which reveals the middle and inner ear chambers, and the external ear is represented by the auricle and auditory canal. This model includes a sturdy base and is made out of strong plastic. Included is a detailed key.

7-1418

Ear Model (Large)

biology 13

• biology models

Oral Hygiene Model, w/ Key Designed to show how to properly care for the mouth, this model has a hinged jaw, movable tongue, and 9” demonstration toothbrush. It is the perfect tool for the instruction brushing techniques and proper oral hygiene. Approximate size: 6-1/3” x 6-1/3” x 4”.

Kidney Model

7-1420

7-1419

Oral Hygiene Model

As the student dissects the kidney, a detailed key, found on the base, explains the various parts of the model.

Kidney Model

2

1

1. Dicot Stem Model The model of the dicot stem features the epidermis, cork layer, phloem region, cambium xylem region, pith, and other vital structures.

Heart Model

7-1393

With this life sized heart model, students have the opportunity to visualize main arteries, veins, and sections of the heart at a competitive price point. The model is made of heavy duty plastic placed on sturdy base. Detailed key included.

2. Monocot Stem Model

14

biology

7-1415 Heart Model

Dicot Stem Model

The plant anatomy model features the cuticle layer, epidermis, closed vascular bundles, parenchymataous tissue and other pertinent parts.

7-1392 Monocot Stem Model

· 7-301

1

2

1. Telescope (Beginner) · 7-330

A great telescope for the beginner student. Made of sturdy construction, this telescope will last through years of wear. It features a 2” diameter lens, 360mm focal length, and two eyepieces: 6mm and 20mm.

7-1360 Telescope (Beginner) · 7-301-1

Cloud Apparatus, Bottle Cloud This demonstration apparatus helps emphasize the relationship between temperature and pressure. Clouds form when the pressure is suddenly reduced inside the chamber. The water vapor is condensed and forms a cloud around the smoke particles. The thermometer is used to measure the change in temperature when pressure is introduced. The unit is mounted on an acrylic base, with two upright steel rods and a crosspiece to hold the stopper in place when air in the cloud chamber is under pressure. Includes instructions. 6” x 4” base x 8-1/4”; 2Ibs 7-301-1

2. telescope (advanced) This telescope is the perfect next step for students as they progress.

Made of high impact plastic and metal. Included are a 2”diameter lens, 600mm focal length, and two eyepieces: 6mm and 12mm and is packaged in a retail package.

7-1361

Telescope (Advanced)

Cloud Apparatus, Bottle Cloud

Cloud Forming Apparatus Teach cloud formation when there’s not a cloud in the sky! This apparatus duplicates atmospheric conditions during cloud formation.

It consists of a special glass flask with a rubber hose connection, pinch clamp, and large, thick walled, rubber bulb. When the atmospheric pressure is lowered, smoke particles are introduced into the chamber and a nucleus for the formation of water droplets is produced. By compressing and suddenly releasing the bulb, a dense cloud forms in the flask. Instructions included. 10-1/4” x 6-1/4” x 6-1/4”; 1lb 7-301 Cloud Forming Apparatus

Dew Point Apparatus

7-330

Dew Point Apparatus

7-1000

Anemometer

earth science

Let your students determine the dew point of the surrounding air and calculate the relative humidity without having to experiment at the crack of dawn! The unit utilizes an aspirator bulb to pump air through a liquid, such as alcohol, which lowers the temperature until the dew point is reached. The dew point can be seen as a film of moisture that builds up on the outside of the nickel-plated cup that is used to hold the alcohol. The cooling caused by the evaporation of the alcohol is what produces the moisture. The thermometer is used to measure the temperature when the dew point occurs. Consists of a chrome tube on a plastic base, thermometer, air bulb, inlet tube, and instructions. 3-1/2” x 3-1/2” base x 13”; 2Ibs

Anemometer Great for outdoor activities! The anemometer is useful in determining wind speed. It is made of corrosive resistant materials for prolonged outdoor use. One cup is colored red for ease in determining the number of rotations. It is simple enough for students to understand and use, while accurate enough to be used by professional meteorologists in weather forecasting. Instructions provided.

The unit consists of a post with revolving wind cups. These cups are each mounted on horizontal arms which extend from the axis of rotation. When using, make sure that each cup is pointed in the same direction with its face perpendicular to the ground. 9” x 6-1/2” x 9”; .27lbs.

15

• earth science kits

Environmental Student Test Lab Kit Perform experiments just like those used by government agencies!

Nine different tests of the air and water around us can be performed with the Environmental Student Test Lab kit. Your students will be interested to know that their experiments duplicate those actually carried out by state and federal agencies. Five water tests look for dissolved oxygen, hardness, chloride, phosphate, and pH. The kit also gives you four air tests for suspended particles, smoke density, concentration of chemicals, and carbon dioxide. These tests are easy to do and produce clear, visible results. Many of the tests give or estimate quantitative results. The kit includes 8 test chemicals, test equipment, two charts, and a reproducible laboratory manual. This kit is an excellent introduction to air and water evaluation.13-3/4” x 10” x 8”; 1Ib

2

7-2000-10

1

Environmental Student Test Lab Kit

1. Environmental Pollution Kit Teach about environmental pollution in a more active way! A classroom size kit for the investigation of the health and economic consequences of environmental pollution. The lecture materials contain discussions of the chemical composition of fresh air and water, pollutants of the environment, consequences of environmental pollution, and treatment and control of pollution. Classroom activities are separated into two categories: air and water pollution. Fifteen activities are performed, five dealing with air pollution and ten dealing with water pollution. The water pollution activities include: determination of dissolved oxygen, addition of oxygen by aeration and by photosynthesis, removal of oxygen by heating, by respiration, and by chemical activity, the relationship between bacteria and oxygen, sewage and plant nutrients, treatment of chemical wastes, and mine acid pollutants and their effects on fish. The air pollution activities include: temperature inversion, the creation of two air pollutants, the effect of air pollution on various materials and treatments for air pollution. Nineteen transparency masters, CD with 47 images and a manual included.

7-2000-9 Environmental Pollution Kit

How Clean Is The Air?

Environmental Pollution Kit – Chemical Refill

2. Atmosphere in Crisis Kit Experiment with the world of air, atmosphere, and pollutants! This kit presents information relating to the characteristics of the air, the atmosphere, and how pollutants affect each of these. It demonstrates the principles of absorption and the effects of air pollution on such common things as plants and metals. Air pollutants are created and treated, thus enabling the students to see and understand the causes and effects of air pollution and the necessity and means of control. Classroom activities include: temperature inversion, the creation of two air pollutants, treatment of air pollutants, and the effects of air pollution. All apparatuses, chemicals, ten 35mm slides, seven overhead transparency masters, and Teacher’s Manual are supplied to perform various experiments.

Learn what air pollution is and how weather and geography affect it! Conduct experiments to test the air that you breathe for pollutants.

This kit comes complete with instruction manual, the chemicals and apparatus needed to conduct several tests, such as experiments on the organism-environment relationship, carbon monoxide and dioxide, oxides of nitrogen, hydrocarbons, and ozone, particulates, smoke density, wind-blown particles, and the effect of weather and geography on air pollution. 123/4”x6”x2-1/4”; 1lb 7-2000-28

7-2000-2 Atmosphere in Crisis Kit Atmosphere in Crisis Kit – Chemical Refill Kit

16

earth science

How Clean is the Water?

This kit is a hands-on way to teach about the effects of pollution on water. Conduct experiments on the chemicals and organisms that pollute our water and how it can be purified. With this kit you will be able to test the level of bacteria in water, the chloride content, the pH level and the rate at which particles settle in water.

13-1/2“ x 10“ x 2-3/4“; 2Ibs 7-2000-29

How Clean is the Water?

The Water Test Kit

Death of a River Kit

Great for field trips and experiments! The ideal field kit for performing four important experiments on water pollution. Students will test water samples for dissolved oxygen content, chlorides, phosphates, and water hardness. All tests are easy to perform and provide professional results. The apparatus and materials necessary for performing each test several times are provided. Refill includes: Phosphate Color Change Card, Dissolved Oxygen I, Dissolved Oxygen II, Dissolved Oxygen III, Sodium Thiosulfate, PI Phosver Powder, Chloride 2 Powder, Universal 3 Hardness Reagent, Tritaver Titrant Edta, Silver Nitrate 12-1/2” x 6” x 2-1/2”; 1Ib.

A great, visual way to teach about water pollution! This kit offers a complete water pollution unit that covers clean water and the prevention and treatment of pollution. A combination of 11- 35mm slides, six reproducible transparency masters, instructor’s manual, and laboratory equipment, leads students carefully through water quality experiments involving dissolved oxygen, the bacteria needed to dissolve oxygen, water clarity, and the treatment of organic wastes. Refill includes: Activated Charcoal, Aluminum Sulfate, Bentonite Clay, Dissolved Oxygen 1, Dissolved Oxygen II, Dissolved Oxygen iii, Sodium Thiosulfate, Methylene Blue, Potassium Permanganate, Sulfuric Acid. 15-1/2” x 11-1/2” x 4”; 1Ib

7-2000-24 The Water Test Kit

7-2000-7 Death of a River Kit

The Water Test Kit – Chemical Refill

Solid Waste & Recycling Kit

Death of a River Chemical Refill Kit

Energy conversion kit This Kit includes several devices for generating and using electrical energy, letting you demonstrate the conversion of energy between different forms. Includes four devices for generating electricity; hand generator (mechanical motion) volt potential 110, Phase 1, battery holder (chemical energy) battery not included, a solar cell (light energy) and windmill (wind energy), and three devices for using electrical energy; LED (generating light), Motor (generating motion), and Buzzer (generating sound). A set of connector cords with alligator clips connect devices to each other in appropriate combinations.

Includes teacher’s manual. Grades 7-12

7-2000-23

7-2012 Energy Conversion Kit

Solid Waste & Recycling Kit

earth science

What are the problems concerning solid waste? This kit will show you! Our self-contained kit uses a combination of 20 and 35mm slides, 10 reproducible transparency masters, reference material, and laboratory equipment to give students an understanding of solid waste causes, sources, and management, plus case studies on solid waste pollution. The laboratory manual and equipment allows students to do tests and experiments involving CO2 cycles in nature, composting, fuel for wastes, and paper recycling. The kit also contains seven testing chemicals and all of the necessary equipment for the tests. 16” x 17” x 6”; 4Ibs.

17

• plastic molecular model sets

Molecular Model Instructor’s Set (Deluxe)

· 7-1863

Set includes: 30 - 2.5cm Black Alkane Carbon Balls 20 - 2.5cm Black Alkene Carbon Balls 10 - 2.5cm Black Alkyne Carbon Balls 25 - 2.5cm Green Halogens And Monovalient Non-Metals Balls 20 - 2.5cm Yellow Sulfur/Selenium Hexavalent Balls 20 - 2.5cm Orange Sodium/Potassium Monovalent Metals Balls 30 - 2cm Red Oxygen Balls 30 - 2cm Blue Nitrogen/Phosphorous Trivalent And Pentavalent Element Balls 30 - 2cm Yellow Aluminum/Chromium Trivalent Metals Balls 30 - 2cm Orange Calcium/Magnesium Bivalent Metals Balls 125 - 1cm White Hydrogen Balls With Integral Bonding Lugs 150 - 1cm Bonding Lugs 370: Total Number of Balls 520: Total Number of Components 7-1863

Molecular Model Instructor’s Set

Molecular Model Student Set (Basic) Set includes: 6 - 2.5cm Black Alkane Carbon Balls 4 - 2.5cm Black Alkene Carbon Balls 2 - 2.5cm Black Alkyne Carbon Balls 5 - 2.5cm Green Halogens & Monovalient Non-Metals Balls 4 - 2.5cm Yellow Sulfur/Selenium Hexavalent Balls 4 - 2.5cm Orange Sodium/Potassium Monovalent Metals Balls 6 - 2cm Red Oxygen Balls 6 - 2cm Blue Nitrogen/Phosphorous Trivalent & Pentavalent Element Balls 6 - 2cm Yellow Aluminum/Chromium Trivalent Metals Balls 6 - 2cm Orange Calcium/Magnesium Bivalent Metals BallS 25 - 1cm White Hydrogen Balls w/ Integral Bonding Lugs 30 - 1cm Bonding Lugs 74: Total Number of Balls 104: Total Number of Components · 7-1864

7-1864

Molecular Model Student Set

Food Chemistry Kit Show your students exactly what’s in the food they eat! The purpose of this kit is to examine, in depth, the chemical nature of many familiar food products. Among the experiments that are in the 30 page Teacher’s Manual are: the presence of sugars, starches, fats, and proteins; fruit discoloration; the chemical composition of milk; the presence of iodine in salt; calcium propionate in bread; and the qualitative test for vitamin C and sulfur dioxide in fruit. 17 x 16.5 x 6; 7.5 lbs

18

chemistry

7-2000-12 Food Chemistry Kit Food Chemistry Kit - Refill only Food Chemistry Kit - Workbook, 30/set

• electrolysis

Hoffman Electrolysis Demonstrate the qualitative and quantitative measurements of electric current’s effect on liquid. The apparatus has graduated arms 19” in length with stopcocks at the top. It is supplied with a support stand, burette clamp, and instructions.

It is graduated to 50ml in 0.2ml subdivisions. Overall height is about 32”.

7-500

Electrolysis, Hoffman Electrolysis Apparatus (glass parts only)

Electrolysis Apparatuses Great for use in lectures and hands-on activities, the unit consists of an acid-proof, non-porous insulating support with a spring clip for holding test tubes, binding posts and two platinum electrodes. The supports fit a 4-1/2 x 5” battery jar and holds a 150mm x 18mm test tube. Platinum electrodes and instructions are included.

· 7-500

7-498 · 7-500-1

Electrolysis Apparatus, Brownlee w/ Jar Electrolysis Apparatus, Brownlee w/out Jar Electrolysis Jar, Molded Glass, 5” D x 7” H

• magnesium ribbon

Brownlee Electrolysis Apparatus This unit features several improvements over the standard Brownlee. The open front spring clips make it much easier to remove the test tubes while the tubes remain submerged. The test tubes have been graduated for a clear measurement of the volume of gas generated. The black acrylic background aids in viewing the water level while supporting the test tubes. The binding posts have been repositioned for easy access and greater safety. Instructions are included.

Jar is not included.

7-499-2 Brownlee Electrolysis Apparatus Electrolysis Jar, Molded Glass, 5” D x 7” H

Magnesium ribbon is an element and a metal. It is silver colored, very light and quite reactive. It will react steadily with diluted acids and release hydrogen gas, it will also ignite while heated in air, emitting a bright white glow. Magnesium ribbon can be ignited using a simple butane lighter or Bunsen burner. Once ignited, the ribbon will burn slowly but steadily down the length of the strand, leaving a flaky, white, Magnesium Oxide residue behind. 99% Magnesium, 1% Zinc & Lead 7-807

25 grams per roll, 99% Magnesium, 1% Zinc & Lead 12.5 grams per roll, 99% Magnesium, 1% Zinc & Lead

chemistry

Magnesium Ribbon

19

• connector cords

Alligator and banana clips are safe and easy for students to use. The connectors are soldered to the insulated lead wires and have a plastic sleeve to protect the contacts.

The banana plugs are both stacking and cross patch. The flexible cords are plastic-coated to ensure added security for classroom use. Available in either black or red. · 7-309-1-r

· 7-199-19-b

· 7-199-13-b

· 7-199-13-r

Red, -B = Black, -PK = 3 red & 3 black

· 7-309-A

Contact Key, Single, Economy Perfect for experiments which require momentary current. The contact key can be used to open or close an electrical circuit. They key is mounted on a 3” x 4-1/2” x 3” black acrylic base, with two binding posts. They key is made of plated metal with contacts and insulated button which is pressed to close the circuit momentarily. Economy; .5 lb 7-319

Contact Key, Single, Economy

· 7-309-D

Connectors Only The component parts you need to make your own lead-wires.

7-309-A Alligator Clip pk/10 Crocodile Clip pk/10

20

electricity

TWO Potato clock The blue plastic potato (fruit) clock has two compartments designed to hold potatoes or fruit. Two coils, one red and one blue, are inserted into a different potato while the green coiled wire is connected to both potatoes. The clock will demonstrate the principles of an electrochemical cell! 8-1/2” L x 3-1/2” W 2-3/4” H 7-1314 Two Potato Clock

• electrodes agnets

Electrodes are designed to help facilitate electricity experiments. Note: A pair of electrodes are required to demonstrate the flow of electrical currents.

7-501-4

7-504-10

7-504-1 – 7-504-9 · 7-505-2

7-505-1

7-499-EL

7-501-2

Electrodes, Platinum Electrodes, Carbon* Electrodes, Flat Aluminum Electrodes, Flat Brass Electrodes, Flat Carbon

· 7-505-3

Electrodes, Flat Copper Electrodes, Flat Iron Electrodes, Flat Zinc Electrodes, Flat Nickel

Electromagnet (Dissectible) A hands-on way for students to more closely examine the power of electromagnetism! The U-shaped electromagnet has two removable excitation coils and an armature with hook. The terminals are mounted at the top of each coil. The overall length is approximately 13 cm; 5” x 5” x 2-1/2”; 1 lb.

7-505-2

Electromagnet (Dissectible)

Large Iron Clad Electromagnet The strong enamel-covered electromagnet powered by 4 1.5 volt C batteries will create an amazing demonstration of the power of an electromagnet capable of lifting up to 200 pounds! Equipped with alligator clip leads approximately 5” in length, the unit measures 75mm D x 260mm L. Batteries are not included, but instructions are! 6lbs.

Electrodes, Flat Tin Electrodes, Stainless Steel** Electrodes Pencil Type, Carbon (.1/4” x 5”; .1Ib) Electrodes, Stainless Steel & Platinum (3/4” x 7”; .5Ib)

* For Electrolysis Apparatus ** Constructed of stainless steel with a plastic shrink tubing covering the rods up to the binding area. *** Replacement for the Brownlee Apparatus

7-505-3 Large Iron Clad Electromagnet

electricity 21

7-2305-1

7-2305

Electricity and Magnetism Kit Teach basic electricity and magnetism with the same convenient kit!

This kit can be used to demonstrate most of the principles of electricity. Supplied with an easily understood instruction manual. The kit contains the following: ·Voltmeter 0-1.5; 0-3v ·Millimeter 0-500 mA; 0-1000mA ·Electroscope ·Battery Kit ·Mini Rheostat ·Two Bar Magnets 2” in length ·Compass Needle ·Two Resistors ·Mini Electromagnet ·Horseshoe Magnet ·Two Mini Contact Switches ·Two Bulb Holders ·Package of Iron Filings ·Battery Holder D-Cell ·Coil of Wire ·Steel Rod Electromagnet ·Acrylic Piece 19mm x 120mm ·Two Plastic Rods 5mm x 120mm. ·6-1/2” x 6-1/2” x3-1/2”; 3Ibs 7-1828

Wheatstone Bridge Experimental Set A complete set with all the necessary equipment to study the design and the use of the Slidewire Wheatstone Bridge. Included are: ·6 Volt Battery ·Galvanometer ·0-999 ohm Resistance Box ·Connector Cords ·6 - Mounted Resistors and Contact Key ·Instruction Guide ·1.5” x 4.5” x 44.5”; 5lbs 7-2305-1 Wheatstone Bridge Experimental Set

Wheatstone Bridge Only

KNife switch - small General purpose for classroom use, Single Throw, and Single Pole made of brass. Plastic Base 2”L x 1”H x 1”W 7-KS-1

Electricity and Magnetism Kit

Knife Switch, Plastic, Small; 2” L 1” H 1”W

· 7-915

Knife Switches w/ Screw-Type Binding Posts Great for classroom and laboratory experiments, the knife switch has a mounted screw type binding post for a solid electrical connection.

· 7-912

7-912 Single Pole, Single Throw; 4-1/2” x 2-1/2” x 1; 0.125 lb · 7-914 · 7-913

· 7-919

Single Pole, Double Throw; 4-1/2” x 2-1/2” x 1; 0.125 lb

Double Pole, Single Throw: 4-1/2” x 2-1/2” x 1; 0.125 lb

Double Pole, Double Throw; 4-1/2” x 2-1/2” x 1; 0.125 lb

Knife Switches w/ Spring-Type Binding Posts Great for classroom and laboratory experiments, the knife switch has a spring binding post which allows for quick electrical connections to a circuit.

7-917 Knife Switch, Single Pole, Single Throw; 4-1/2” x 2-1/2” x 1; 0.125 lb

· 7-918

22

electricity

Knife Switch, Single Pole, Double Throw; 4-1/2” x 2-1/2” x 1; 0.125 lb

• lamps

• lampboards

Useful in demonstrating simple, parallel, and complex circuits, lamp boards are a great visual teaching tool especially when used in conjunction with the DC Hand Generator.

· 7-1200-3

· 7-1200-14

· 7-1200-16

· 7-1200-17

· 7-1200-1

· 7-1200-18

Five Lamp Board

Lamps

Mini Lamp 1.5 Volts pk/10

Parallel and series circuits are demonstrated using this easily convertible lamp board. Five mini receptacles are mounted on a clear acrylic base. Buss bars connecting the receptacles allow for quick changing from parallel to series and many combinations of the two.

Instructions are included. Parallel and Series Circuits; Instructions are included.; 15-1/2” x 1-1/25” x 5-1/2”; .97lb.

Mini Lamp 2.5 Volts pk/10

7-1200-3 Five Lamp Board

7-1200-4 Replacement Bulb 3.7 volts (150mA) Fits all Lamp Boards.

Lamp, Table Top w/ Gooseneck, 12”, 60W

7-Mini Lamp 6.3 Volts pk/10

Five Lamp Economy (15-1/2” x 1-1/2” x 5-1/2”; .97lb) Three Lamp Board Economy

• lamp receptacles

The following are essential tools for activities involving electrical circuits.

· 7-1200-10

· 7-1200-11

· 7-1200-12

7-1200-10 Receptacle Mini Plastic w/ Screw-type Binding Post (1-1/2”; .02Ib) Socket w/ Two Metal Terminals (1-3/4”; .01Ib) Receptacle Mini Porcelain w/ Screw-type Binding Post (1-1/2”; .04Ib) Receptacle Plastic Disc w/ Two Terminals (1-3/4”; .01Ib)* Mini Lamp Holder (3-1/2”; 2-1/2”, 1”; .05Ib)**

· 7-916

electricity 23

· 7-1309-30

· 7-1309-31

Meter overhead projection The electric meters for overhead projectors are the most useful tools for teaching electricity concepts to large classes. The fully functional electric meters are built in transparent cases so they can easily be projected in classroom environments. Each unit incorporates dampening features, magnetic shielding, and an accuracy of + or - 2.5%. A well-written instruction sheet offering a number of suggested uses is included.

mA - milimeter uA - micrometer A - amps V - volts

7-1309-30

Electrical meters Low-cost, high-quality meters for numerous uses. (+/-2.5% Accuracy). Closed back. 4” x 4” x 5” 7-1309-1 AC/DC Ammeter Black, 0-3A DC Ammeter Red, -20-0-100uA DC Ammeter Red, 0-500uA DC Ammeter Red, 0-1mA DC Ammeter Red, 0-100mA DC Ammeter Red, 0-200mA DC Ammeter Red, 0-500mA DC Ammeter Red, 0-1A DC Ammeter Red, 0-3A DC Ammeter Red, 0-5A DC Ammeter Red, 0-10A DC Ammeter Red, 0-1A, 0-5A DC Ammeter Red, 0-50mA, 0-500mA, 0-5A DC Voltmeter Blue, 0-3V DC Voltmeter Blue, 0-5V

Digital Multi- Meter

DC Voltmeter Blue, 0-10V

A versatile meter with a myriad of potential uses, this digital meter is housed in a strong, resilient plastic case with a .5” tall display and is highly accurate. It comes with attachment cords and uses a 9 volt battery. Almost all electrical experiments require the accurate measurement of voltage, current, or resistance. Ranges are DC-20mV, 2000V, 20V, 3200V, 1000v, AC-200V, 750V, DC Current-200uA, 2000uA, and 200mA.

DC Voltmeter Blue, 0-5V, 0-15V

24

electricity

7-1306-41 Digital Multi-Meter

DC Voltmeter Blue, 0-3V, 0-10V, 0-15V DC Voltmeter Blue, 0-3V, 0-15V, 0-300V Galvanometer White, -500-0-500uA Galvanometer White, -35-0-35mV Galvanometer, White, -500-0-500mA DC

DC Crank Generator Magneto Generator Perfect for classroom demonstrations showing the effect a load has on a power source, the field of this magneto is generated by a single Alnico magnet with a strong magnetic flux density. Capable of producing higher voltages than cobalt-steel magnets, the generator is mounted on a 7-5/8” x 12” wood base with an incandescent lamp and socket used as a load. Two binding posts are placed on the board for attaching other loads. It comes with instructions for use.

16” x 9” x 6”; 6lbs.

7-1253

The DC Generator is a versatile generator and a perfect power supply for many experiments! The pistol grip style handled device can be utilized with almost any experiment requiring up to 12-volt DC current. Housed in tough clear plastic, the unit is not only functional but costs about half the price of similar models. The generator can be used as a hand generated flashlight due to the mounted lamp on the end. One may also use the binding post to connect an outside electrical circuit. 6-1/2” 2-1/2” x 4-1/2”; .5lb.

7-1853

DC Crank Generator

Magneto Generator

AC/DC Generator AC and DC properties are demonstrated with this unit.

By turning the handle, the current that is produced can be seen as it lights the lamp. The faster the handle is turned, the brighter the light. Instructions are included.

5-1/2” x 9” x 13”; 7.54lbs.

7-1850

AC/DC Generator

electricity 25

1

3

4 2

1. Miniature Motor Model 5

The best way to understand how something works is to build it yourself, which is what this kit is designed to do. It is a model of both an AC and a DC motor. It is easy to assemble and disassemble. The unit is self-contained and includes a wrench and screwdriver. It is used to demonstrate both permanent and electromagnet motors. All parts come packed in a protective case which becomes the base for the motor when it’s assembled. Instructions are included. 6” x 1-1/” x 4”; .75lb.

7-1847

Miniature Motor Model

2. Motor, DC w/ Leads This little, yet powerful, motor is ideal for hundreds of electrical experiments and projects! The motor housing is 23.8mm D x 30.5mmL with an overall length of 45mm including the 2mm shaft. Voltage requirements are 4.5 to 6.0dc volts. Each unit also incorporates a 30mm long red and black connector cord with insulators. .11lb.

7-280-A Motor, DC w/ Leads

· 7-1800-5 · 7-1800-2

Switch Resistance Box Electronic measurements can accurately be made with this multiresistor box. Calibrated to an accuracy of 0.2%, the coils have non-inductive windings so the box is applicable for both DC and AC experiments. All the coils are firmly locked into place to eliminate physical strain on the wires. Features: silk-screened cover, insulated binding posts, pointer knobs, resistance ranging from 0 to 999 ohm, multiple switches with wiping contacts, and instructions for use. 3 switches; 5-1/2” x 7” x 2-1/2”; .5lb.

7-1800-2

Resistance Box, 3 Switch

Mounted Resistors Securely mounted resistors are perfect for use with the #2305 Wheatstone Bridge. These six wire-wound resistors ranging from 5 to 1000 ohm are mounted on a 10 x 15cm base and are rated at 5 watts. Connecting nuts attached to the ends of each resistor make connections easy. The resistor’s value is hidden from view and the students try to assess the value of the resistance. 6”x4”x1-1/2”; 5lb

26

electricity

7-1800-5

Mounted Resistors

3. Primary and Secondary Coil Experiment with Transformer Principles and Induction using a primary and secondary coil. The outer coil is 4-1/2” tall and 2-3/4” in diameter. The inner coil is 3-3/4” tall and 1-1/4” in diameter. The removable steel core with handle is 1/2” in diameter and 5-1/2” tall. All coils are wrapped in 20-gauge magnet wire with insulated binding posts as connectors. 5-1/2” x 3” x 2-1/2”; .75lb.

7-1440

Primary and Secondary Coil

4. St. Louis Motor The St. Louis Motor is useful in demonstrating the operations of a DC motor. It is a great way for students to learn fundamental motor and generator functions. The motor consists of a 2-pole armature mounted between magnets. The steel supports are mounted on a ridged plastic base. It operates on 3 to 9 volts DC. Instructions are provided. 5” x 5” x 7”; 1.375lbs 7-1857

St. Louis Motor

5. DC Motor Kit Assemble your own DC motor and learn by doing! This kit allows students to build their own DC motor from scratch. All of the nessary parts are included, plus a detailed instructions manual. Runs on one AA battery. 3.5” x 3” x 3”; .25lb 7-1858

DC Motor Kit

ar cells

Demonstration Solar Cells Four powerful solar cells are mounted on a revolving disk and motor. This in turn is mounted to a plastic stand and base. Watch as the entire disk, solar cells included, begin to whirl around when the unit is placed in the sun. Instructions provided. 5” x 4-1/4” x 5-1/2”; .5 lb 7-1849-2 Demonstration Solar Cells

Solenoid / Electromagnet with Iron Core Study the magnetic field of a current-carrying coil and discover how an iron core affects it. This device is used for many demonstrations involving electric magnets or solenoids. A plastic spool is wrapped with three layers of 20-gauge magnet wire. A 1.8cm diameter removable steel core is located inside the solenoid. Insulated binding posts are found at each end for application of an electric current. Included is a 3/4” x 6” steel core. An instruction sheet is provided. 8” x 4” x 4”; .62 lb 7-1850-1 Solenoid / Electromagnet w/ Iron Core

Transformation of Energy Apparatus Solar Cell & Motor Demonstration The high-powered silicon cell converts light directly into electricity to operate a motor. It produces an exceptionally high output 1/2v with 300 milliamps of current output in bright sunlight. The solar cell is approximately 2” x 3” with a plastic diffusing lens and a protective mounting.

The motor, with special anti-friction bearings, revolves approximately 400 RPM in bright sunlight. Instructions included. 5” x 5” x 4”; .5lb 7-1849

Solar Cell & Motor Demonstration

Demonstrate the transformation of mechanical energy into electrical energy, light, heat, and sound with one apparatus! Mechanical energy is induced into this unit through a high quality Alnico magnet generator. Through the use of knife switches, the current can be directed to an electric bell, lamp and socket, a 110V induction motor with propeller, or any combination of the three. Feel the difference in the drag of the generator as the switches are opened and closed. The entire unit is mounted on a wood base.

Complete with instruction sheet. 24-1/4” x 8” x 6.5”; 6Ibs. 7-2010 Transformation of Energy Apparatus

electricity 27

• battery holders

“AA” Cell Battery Holder The Economy Battery Holder for AA batteries (not included) has positive and negative leads for easy connection to circuits, series or parallel. 2 ¼”L x ¾”W 7-bh-3

“AA” Cell Battery Holder

“D” Cell Battery Holder

· 7-bh-3

This Battery Holder for D Cell batteries (not included) is high impact plastic and ideal for heavy classroom use. The Fahnestock clips give easy access when attaching to leads and visualizing series or parallel circuits. 3”L x 2”W 7-bh-4

“D” Cell Battery Holder

“D” Cell Battery Holder w/ Fahnstock Clips The battery holder is plastic. The fahnstock clips are metal terminals on each end of the holder. Fahnstock clips are flexible metal with a rectangle punched out of one end and a loop punched out of the other end. The clip is bent over itself so the loop can be pushed through the rectangular opening.

A wire can be inserted through the loop and the spring force will hold the wire in place.

· 7-BH-4

7-bh-5

· 7-BH-5

“D” Cell Battery Holder w/ Fahnstock Clips

• voltaic cells

1. Voltaic Cell W/ 2 Electrodes Voltaic cells are ideal for demonstrating the characteristics of a primary cell. The 2 electrodes are copper and zinc which create chemical reactions within the glass cup. 4” x 4” x 5”; .55lb.

1

7-1822 Voltaic cell supplied w/ 2 electrodes

2. Voltaic Cell, with 8 Electrodes & Porous Cup · 7-1826-pc 2

The porous cell cup is clear enabling you to view the electro-chemical reactions taking place. The top rim is heavy molded plastic with sturdy nickel clamps which hold both round or flat electrodes. 4” x 4” x 5”; 6lbs 7-1826 Voltaic Cell, w/ 8 Electrodes & Porous Cup

28

electricity

Porous Cup for Voltaic Cell (2-1/2” x 2-1/2” x 4-1/2”; .5Ib)

Electropulse DC generator kit

Tangent Galvanometer

The Electropulse DC Generator Kit offers dozens of exciting electricity experiments. The huge unit is built around a hand-powered DC generator which is capable of producing up to 12 volts DC (current, 2.3 amp at 7.5 volts 3.2ohm load). An in-depth instruction booklet takes the user through the basic principles of electricity such as atoms, electrons, the Bohr atomic model, diodes, electromagnetism, motors, generators, current, resistance, Ohm’s law, parallel and series circuits, conductor and insulators, circuit protection, electrolysis, electroplating, meters, batteries, magnetic field, and much more.

This small, compact tangent galvanometer provides an uncomplicated method for studying direction and magnitude of magnetic fields! It also demonstrates that deflection of a magnetic needle is proportional to current, thus becoming a simple way for students to understand the internal workings of meters. The unit is constructed on an attractive black acrylic base. Requires a 1.5-volt DC power source. Instruction manual, compass, and connector cords. 7” x 5” x 7”; .5Ib

7-1859

Electropulse DC Generator Kit

7-1930

Tangent Galvanomete

pes

· 7-501-5

· 7-501-8

· 7-501-6 · 7-501-7

· 7-501-FOIL

Flask Electroscope Perfect for individual use, this is a practical and economical electroscope consisting of aluminum leaves mounted on a metal rod held by a rubber stopper in a 250ml flask. 3-1/2” x 3-1/2” x 6-1/2”; .5lb 7-501-5 Flask Electroscope

Electroscope Foil Leaves (pk/12) (1/4” x 1”; .01Ib)

· 7-501-9

· 7-501-8A

• friction pads & rods

· 7-501-13

Electroscope Case, Gold Foil Type A large and highly durable electroscope case makes this a perfect product for student use. The Gold Foil Electroscope is a classic in physics demonstrations and science classes. The unit is large and, therefore, easier for students to view. The wide radius swing provides an effective visual demonstration. The unit features a built-in scale which helps to determine the amount of charge generated.

The metal case is sturdy and stable to resist damage. 8” x 3-1/2” x 9-1/2”; 2.25lbs.

7-506-3

7-506-5

7-501-13 Electroscope Case, Gold Foil Type

Electroscope - Metal Case This electroscope box is made of anodized aluminum with glass windows in both the front and back of the box. The glass plates prevent erratic motion of the leaves by shielding them. This allows the leaves to react only to charges that are intentionally brought near them. The plates are easily removed, allowing for introduction of ionizing material. Instructions are included. 5-1/8” x 3-5/8”; .5Ib 7-501-7 Electroscope – Metal Case

Electroscope with pith balls Electroscope and Electrostatic Balls - A visible demonstration of electrostatic activity is achieved with this unit. The electrostatic balls are suspended on a hook attached to a plastic base. When a static charge is brought near the balls they react to the electrical charge. 8” x 3-1/2”, .12lb.

7-501-8 Electroscope w/ Pith Balls Electroscope – Silvered Pith Balls Only

Electroscope - Enclosed Unit

7-501-9 Electroscope - Enclosed Unit

7-506-1

Friction Rods Friction rods are used to demonstrate static electricity when used with friction pads.

7-506-7 Friction Rod – Acrylic (10” x 3/8”) Friction Rod – Ebonite (Hard Rubber) (9-1/2” x 3/8”)

Friction Rod Hollow

Friction Rod Half Ground

Friction pads Friction pads are used with friction rods to generate electrostatic charges, which demonstrate the principles behind static electricity.

7-506-1 Friction Pads, Faux Animal Fur, 3” X 5” (Approx. Size) Friction Pads, Silk Pad, 6”X 6” Friction Pads, Wool Pad, 6”X 6” Friction Pads, Flannel Pad, 6”X 6” Friction Pads, Faux Animal Fur, 9”X11” (Approx. Size) Friction Pads, Real Animal Fur (Rabbit) 3” X 5”

electricity

Because the device is enclosed, it is the perfect way to explore electrostatic principles without outside interference! It is wonderful for small children as the unit contains no glass or parts that can be easily broken. A brass ball sits on top of a plastic cap from which very fine copper wires attached to electrostatic balls are suspended. The entire unit is sealed in a clear plastic cylinder which shields the balls from air currents. Instructions are provided. 3-7/8” x 3” ; 0.18lb

7-506-2

29

• electrostatic sets

Electrostatic Lab This kit includes items for Faraday’s ice pail experiment: two electroscopes with interchangeable spheres and disks are included to demonstrate charging by induction, repulsion and attraction of charges, discharge occurrences from points, surface distribution of charges, and charging properties of different materials. Also included are: an electrophorus, Faraday cage, electrostatic balls, neon lamp, transfer ball, various friction rods, and instructions. It is an incredibly comprehensive kit for studying static electricity! 12” x 12” x 12” 5.3lb

· 7-506

7-507

Electrostatic Lab

Electrostatic Kit Here is everything you’ll need to explore static electricity! This economical set of materials is ideal for demonstrating static electricity. Each kit is supplied with: three friction rods: one hard rubber, one hollow glass, and one half ground glass; four pads: one fur, one flannel, one silk, and one wool; 3 balloons and 10 feet of string; and instructions. 8-1/4” x 3” x 1”; .25lb

· 7-507

7-506

Electrostatic Kit

Wimshurst Machine (Economy) Perform all the classic experiments at a more affordable price! This unit is built following the basic design of most Wimshurst machines, but with economy in mind. The stand, leyden jars, pulleys, and two handles are all molded from durable plastic. Produces sparks 2-1/2” long, under appropriate weather conditions. 14” x 8-1/2” x 14-1/2”; 6lbs 7-509

Wimshurst Machine (Economy)

30

static electricity

Leyden Jar (Separable) Demonstrate storage of electrical charges! This unit is effective in helping students understand the function of a dielectric and the buildup of static electricity. The inner and outer metal conductors are separated by a plastic insulator cup. These pieces slide easily in and out of one another.

The inner conductor may be removed and the charge measured. When the conductors are replaced, the charge is transferred back to them. The 3 piece set come with instructions. 3” x 5 3/4” ;.5lb 7-510

Van de Graff Generator This excellent quality generator consists of an aluminum collector sphere (mounted above the neoprene belt) and a sturdy base with removable terminal housing. The clear belt housing tube allows for easy viewing of the moving parts. 250,000 volt potential.

7-511

Van de Graff Generator (8” x 11” x 24”; 10lbs)

agnets

Discover and explore the infinite world of magnets! · 7-1249-5

· 7-1249

· 7-1250 · 7-1249-8

· 7-1249-6

· 7-1825 · 7-1258

7-1249 Magnetic Bar,6”, Unpainted, 6% Chrome, 1 pair

· 7-1382

Magnet, Bar, 6”, Painted, 6% Chrome, 1 pair

· 7-1368

Magnetic Wands

Use magnetic wands to determine if an item is magnetic by waving the wand over the object. They can be used inside or out!

Magnet, Horseshoe, 6% Chrome Steel 4” Magnet, Horseshoe, 6% Chrome Steel 6”

7-1258-B Magnetic Wand, Blue

Magnet, “U”, 6% Chrome Steel w/ Keeper, 6”

Magnetic Wand, Green

Magnet, “U”, 3”, Steel, Painted

Magnetic Wand, Orange

Magnet, Rare Earth (Neodymium) 12mm X 6mm

Magnetic Wand, Pink

Magnet Bar, Steel 6”, 6% Chrome, Unpainted, ea

Magnetic Wand, Red

Magnetic Wand, Violet Magnetic Wand, Yellow

3-d magnetic field demonstrator

1

Made of Plexiglas with 2 hinged chambers, the field demonstrator is used to demonstrate the power of a magnetic field. The center battery is attached to one chamber. When the chambers are separated the filings fall. When the chambers are joined and inverted the filings realign themselves according to the magnetic field lines. Comes with instruction sheet; 5” H x 5-1/8” W x 5-1/4” D

2

7-1322 3-D Magnetic Field Demonstrator

Magnetic Lines of Force Demo

1. Projector of Magnetic Line-of-Force

The clear visibility of this unit makes understanding lines of magnetic force much easier to demonstrate. The iron filings float in a layer of oil encased in an acrylic plate and orient themselves according to the magnetic force of any magnet placed under the apparatus.

Perfect for use on overhead projectors. Magnet not included; 7/16” x 4-3/4” x 8-3/4”

The Projector of Magnetic Line-of-Force may be used to show magnetic line-of-force of various permanent magnets; while the Magnetic Line-of-Force Viewer demonstrates steric magnetic field and formation of its lines-of-force using iron powder in liquid immersion.

Special features of the Projector of Magnetic Line-of-Force include simple construction, easy handling, sharp image, and evident result.

May be observed directly or by means of projection. Simply shake the container thoroughly before use, place it on a magnet, and linesof-force will be seen immediately. To use the Magnetic Line-of-Force Viewer, the instrument is rotated and shaken up and down, until the iron powder is well mixed with liquid. Next, a magnet or electromagnet is pushed into the hole and lines-of-force may be clearly seen.

7-497

7-1257

Magnetic Lines of Force Demonstration

Magnetic marbles Bag of 100 magnetic marbles. Variety of colors; each 2/3” 7-1258

Projector of Magnetic Line-of-Force

Magnetic Marbles Set/100

Magnetic Suspension Horizontal Rotor

2. steric demonstrator of magnetic lines of force

This device demonstrates many phenomena of physics. Place the pointed end against the glass inset and gently twirl. Colors may vary.

Used for the demonstration of the existence of magnetic field as well as the spatial distribution of its line-of-force. Directions for use included.

7-503

7-1382

Magnetic Suspension Horizontal Rotor

Magnetic suspension apparatus

Steric Demonstrator of Magnetic Lines of Force

Demonstrate the concepts of magnetic repulsion and attraction using this apparatus. Three circular magnets float above an acrylic base. The apparatus can be used to demonstrate both magnetic attraction and repulsion.

• compasses

7-1368 Magnetic Suspension Apparatus

Great for field trips and special activities!

7-313-2 Aluminum Compass, 40mm D; w/ Color-coded Poles

· 7-313-2

· 7-313-3

Compass Board, Ungraduated & Transparent, 20mm D

magnets

Plastic Compass, 55mm D, w/ Color-coded Poles

31

• BALANCE AND DEMONSTRATION UNITS

(Close-up)

New York Demonstration Balance A quick and effective way to help students comprehend the relationship between length of the lever arm, moment of force, and amount of force! When they adjust weights on the lever to establish equilibrium, students will observe the law of torque and its properties.

Consists of a 50cm meter stick, stand, three knife-edge clamps, one 50 gram hooked weight and one 100 gram hooked weight. 19-1/2” x 3-3/4” x 6-1/2” 1.6Ibs. 7-1450

A new version of a classic teaching tool! What makes this unit so special is an internal sliding weight mechanism that allows you to neutralize all factors after the fulcrum and positions of force have been established. Demonstrates levers, momentums, and the principles of mass measurement more accurately than previous versions of this balance. 20” x 8”x 1-1/2”; 5lbs 7-1451 21st Century Balance

New York Demonstration Balance Knife Edge Clamp

Brass Weight, 50gm

Brass Weight, 100gm

21st Century Balance

Knife Edge Clamp The metal clamp slides on and locks to any meter stick. The removable stirrup can be used for the suspension of weights. This is the same clamp used with the New York Demonstration Balance.

3” x 1” x 1-1/4”; .11Ib

Meter Stick, 50cm

7-911 Knife Edge Clamp

Balance Demonstration Stand This helpful instrument is great for teaching the basic but tricky-toexplain principle of leverage. It consists of a knife-edge clamp, meter stick, metal support, and cast iron base. 19-1/2” x 3-3/4” x 6-1/2”; 1.27lbs

Fulcrum Holder The metal support and cast iron base only.

3-3/4”” x 3-3/4” x 6-1/2”; 1.1Ibs 7-150-1 Fulcrum Holder

7-150 Balance Demonstration Stand

Quiet Air source This piece of equipment can be used on an apparatus requiring an air source such as air tables or air tracks. Very quiet in operation and comes complete with a 1 1/8” diameter hose. Operates on 110 volt AC.

32

force & mass

7-794

Balancing bird This simple device demonstrates how gravity works. By perfectly distributing weight on the tips of the wings, and placing its mass near the tip of its beak, the equilibrium of the bird is stabilized. This allows the bird to balance on whatever object it is placed upon!

7-1320 Balancing Bird

•collision

Balls Aluminum and brass balls are used in collision and pendulum activities, as well as other force, motion, and mass demonstrations.

7-200-1-3/4 Aluminum Ball Solid 3/4” Aluminum Ball Solid 1” Brass Ball Solid 1” Brass Ball w/ Hole 1” Steel Ball Solid 1/2” Steel Ball Solid 3/4” Steel Ball Solid 1” Steel Ball w/ Hole 3/4”

Ballistic (shock) Pendulum Apparatus Excellent for demonstrating the Law of Conservation of Momentum and Trajectory, the unit uses a nylon pendulum with a tapered rubber insert. Both pendulum and base have leveling screws. The spring-loaded gun has a self-locking trigger and rubber bumper to prevent damage on impact. The scale is marked in degrees and is registered by a counter-weighted needle that remains in place at the height of the arc.

Instructions provided. Shock Pendulum Apparatus;16-1/2” x14” x15” 4.75lbs 7-1600-4 Ballistic Pendulum Apparatus (Shock Pendulum Apparatus)

Horizontal Cast and Collision Tester Here is a unique way to study horizontal and vertical motion, conservation of energy, and momentum! A track mounted to a vertical board directs one or two carts, casting them into a free fall. The angle of the track is easily adjustable. A pen projecting from the back side of the carts marks the path of the cart as it falls. The pen can be refilled with any standard ink. The graph paper is held in place with magnetic strips, which enables quick replacement for the next student’s use. Add weights to the carts to study the effects of increased mass on momentum. 16-3/4”x 6”x13”; 6.5lbs 7-1889 Horizontal Cast and Collision Tester

Ballistics Car

7-1379 Small Collision Ball Apparatus

7-1600-9 Ballistics Car

force & mass

A great apparatus for demonstrating Newton’s Third Law of Motion and the principle of Conservation of Momentum. The new design provides for better results, stability and quality.

An essential for demonstrating that the forward velocity of a ball ejected vertically is the same as the forward velocity of the vehicle from which it was ejected. Includes a vertical spring-loaded barrel and a 1” diameter steel ball. The ejection mechanism has two settings that are controlled by a release pin and cord. Instructions are provided. 9-3/4” x 2-1/4” x 5-1/2” .5Ib

Small Collision Ball Apparatus

33

Free Fall Apparatus Conduct the classic free-fall experiment with your class! A great improvement over classic free fall equipment, our Digital Photogate Free Fall Apparatus retains the precision of older models while eliminating the hassle of setting up and adjusting heavy equipment. The apparatus consists of a lightweight extruded vertical column that carries a release electromagnet, two adjustable photogates, and a catching bag. The falling body is a 1.8cm steel ball. We recommend using it in conjunction with our Digital Timer 7-2009, which has several operating modes that allow different series of up to ten measurements to be made. These include: the time of fall from rest to the first photogate, the time of fall between the two photogates, and the time to pass through each photogate. After conclusion of a series, the measured times are displayed successively. The data allows a precise determination of gravitational acceleration. 49” x 5” x 5”; 6.5lbs

Digital Timer & Photogate

7-1888 Free Fall Apparatus

7-2009 Digital Timer & Photogate

The solid state apparatus is a must for any physics class and is perfect for our air track and free fall apparatus. Two photogates are included, each with its own shielded connecting cord and mounting screws. The timer has functions for timing, mechanical periods of oscillation, acceleration, collision velocities, counting, and more. 11-1/2” x 10-1/2” x 6”; 6lbs

• engines • gyroscopes

These low-cost, high quality gyroscopes permit many experiments in gyroscopic action!

Precision Gyroscope Help students understand how and why gyroscopes are used for many guidance systems. This is a well balanced, high quality gyroscope with adjustable bearings.

The accessories include: plastic gimbals, rocker, and pivoting housing. It comes with instructions. 7-1/4” x 4-1/4” x 4-1/2”; 1.5lbs 7-792 Precision Gyroscope

Gyroscope This simple form gyroscope is ideal for illustrating rotational inertia. Mounted in a hearty wire frame, the 5.5cm diameter, cast metal gyroscope is held by a support base with a socket at the top end. A long starting string and instructions are also provided.

7-795 Gyroscope

Gasoline Engine model Economy combustion engine is perfect for any technology, physics, or general science class.

The four-stroke operation is demonstrated by the gear driven timing mechanisms, valves, and ignition systems. DC power input is available to power a lamp, which represents the spark plug ignition. Made from high-density plastic that will withstand frequent use. 8” x 13”; 5.5 lb.

7-1861 Gasoline Engine Model (8” x 8” x 13”; 5.5lbs)

34

force & mass

Dynamic Car Set/2 Perfect for performing experiments in conservation, velocity, elastic collisions, acceleration and momentum without breaking your budget! The set contains two high impact plastic cars with snap-in wheels and two spring steel bumpers with rubber stopper assemblies. Each car is designed with a large recession for holding additional weight. Set of 2; 5” x 2”; 2Ibs 7-605 Dynamic Car Set/2

Simple Hall’s Carriage Used to demonstrate science principles such as: Newton’s Second Law of Motion, how mass influences movement, and the effects of friction, the Simple Hall’s Carriage can be used with an incline plane for further experimentation. Both the body and wheels are made from high impact plastic.

The recession in the car allows for weight to be added to the apparatus. The hole in the front of the molded plastic body allows you to attach a cord, which is useful when using an incline plane. 5-1/4” x 2” x 1-1/2”; .01Ib

Impact Car What better way to study the momentum changes of varying mass than with a visual measure of its force? The impact car is equipped with a spring scale and slide that is displaced upon impact with a wall or similar obstacle. The slide remains in its displaced position until reset. The student rolls the car down a ramp and measures the impact. As additional mass is added to the recessed cavity inside the car, the experiment is repeated. The student can take direct readings from the scale to measure the increasing force. Instructions are provided. 7” x 3” x 2”; .375lbs.

7-798 Impact Car

7-793 Simple Hall’s Carriage

Hall’s Carriage This is a sturdy carriage made of high impact plastic for durability.

The one-piece, needle bearing wheels allow the carriage to roll with little resistance. A hole is provided in the body so a cord may be attached providing more experimental versatility. The Hall’s Carriage is essential for any physics class! 5-1/2” x 2-1/2” x 1-1/2”; .17lb.

7-799

Hall’s Carriage

Hooke’s Law Demonstrate to your students Hooke’s Law stating law that the stress within a solid is directly proportional to the strain that the solid exhibits. In particular this device shows students that the extension of a coiled spring is proportional to the weight of the masses loaded on a hanger. The model comes with a sturdy cast metal base, testing spring, metal scale, four 20-gram weights, a 20-gram weight hanger, and an indicator needle.

Instructions are included. 4” x 4” x 12”- 1.5lbs.

7-808-1 Hooke’s Law

Friction on an Incline Plane This simple device is a must-have for teaching a class about friction. It provides an ideal device for demonstration showing resolution of forces, acceleration down a plane, work, potential energy, and friction. The unit is made of smooth wood with a metal pulley attached to the incline and a large protractor for accurately recording the angle of incline. Three different-sized boards with eye hooks are also included for study of how displacement, surface contact, and weight affect frictional forces. Instructions are provided. Stand not included. 2-1/2” x 7-1/2” x 26”; 4.2lbs.

7-811 Friction on an Incline Plane

Inclined Plane set

7-812 Inclined Plane Set

force & mass

This complete set includes an inclined plane with pulley and protractor, a Hall’s carriage, and a standard weight hanger. Used to demonstrate resolution of forces, uniform and accelerated motions, kinetic and potential energies. The wooden inclined board measures 60cm L x 10cm W, and can be set at any angle between 0 and 45 degrees. The two scales on the protractor allow angle measurements to be made directly or by trigonometry. The aluminum wheel and cone bearings on the Hall’s carriage help minimize friction on the inclined plane. The mass of the aluminum weight hanger is 50g. Instruction manual included.

35

Mass Force Demonstration (Ball & Card)

Force & Reaction Fan Car The Fan Car demonstrates the difference between force and mass. It may also be used to demonstrate friction when used in combination with an incline plane.

Rest the plastic ball on top of the Plexiglas square which is set on the vertical post. Release the spring and the square shoots out. The ball falls into the concave recession in the post, remaining at rest on top of the post as if nothing happened. Replaced 7-197.

7-1374 Force & Reaction Fan Car

7-1369 Mass Force Demonstration (Ball & Card)

Roman Arch This unit demonstrates both the construction and engineering involved in constructing a Roman Arch!

The complicated arch uses compressive forces to hold it together in a state of equilibrium. Made from precision cut wood, an arch can be built. A support base is included so that the unit can be constructed and left assembled. Instructions included. 17-1/2” x 7” x 2”; 5.5lbs 7-1868 Roman Arch

36

force & mass

Maxwell’s Wheel Useful for demonstrating momentum, conservation of energy, and torque. The wheel is suspended by two strong cords which are wound around its shaft and then released. The wheel will unwind as it falls but will wind itself back up as the momentum carries the wheel upward in the opposite direction. This oscillation process will continue for several moments as the wheel slowly loses momentum Instructions are included; 12” x 4” x 17.3”; 7lbs 7-1886 Maxwell’s Wheel

Large Pulley Demonstration Large enough for demonstration in the classroom, the large pulley demonstration is designed to teach the concepts of force and mechanical equilibrium as they relate to pulley arrangements. The model can be used to illustrate the important concepts of mechanical advantage and the conservation of energy. It includes: 2 threaded metal vertical support rods, a metal crossbar, 2 crossbar clamps, a 90 degree clamp, 3 single pulleys, 1 quadruple pulley, 1 triple tandem pulley, 1 wheel and axle, 3 pulley clamps, 10 slotted weights ranging from 10 grams to 500 grams, 3 weight hangers and pulley cord (100 ft.), and a complete laboratory manual. 36” x 8” x 8”; 23lbs 7-1605 Large Pulley Demonstration

ulleys

Pulleys are used to demonstrate how to mechanically change the direction of force being applied to force. They can be used individually or in group applications to aid in doing work.

7-1606-1 Single Pulley (3/4”W; .1lb) Double Pulley (1”W; .104lb) Triple Pulley (1-1/4”W; .11lb) Single Colored Pulley (3/4”W; .1lb) Double Colored Pulley (1”W; .104lb) Triple Colored Pulley (1-1/4”W; .11lb) Quadruple Colored Pulley (2”W; .22lb) Double Tandem Colored Pulley (6”L; .109lb) Triple Tandem Colored Pulley (7-1/2”L; .11lb)

Wheel and Axle Great for teaching about mechanics and conservation of energy, the plastic stepped pulley is fitted with a ball bearing on a single steel rod. It uses any standard right angle clamp to attach to a support stand. 6” x4-1/4” 4-1/2” .33Ib 7-2302 Wheel and Axle

Pulley w/ Table Clamp (Cast IRon) The perfect pulley for easy height adjustment for table-edge demos! There are many uses in a science class for this mounted pulley with extension arm. The cast iron clamp mounts to the edge of any table up to 2-3/8” deep. The 2” diameter metal pulley is mounted to an 8” rod that can be adjusted up to a height of 10-1/2” above the table.

11” x 2-1/2” x 3-1/2” 1lb.

7-1606-20 Pulley w/ Table Clamp (Cast Iron)

· 7-1477

· 7-1476-1

Loop the Loop Track

Newton’s Second Law of Motion

Demonstrate the transformation of potential energy into kinetic energy in a fun and interesting way! Challenge your students to calculate the minimum height the steel ball can be rolled down the track and still complete the loop without breaking contact with the track. Measures 420mm x 100mm x 430mm. Instructions included. 16.5” x 4” x 17”

Help students to visualize and grasp Newton’s Second Law of Motion! This sturdy unit demonstrates that a horizontally projected ball and vertically dropped ball land at the same time. The spring device can propel a ball up to 48” from its starting point. It comes with a detachable rod for clamping to a table or stand. Instructions included.

Cast Iron; 12” x 4-1/2” x 2”; 1.21Ib

7-1204 Loop the Loop Track

7-1476 Newton’s Second Law of Motion – Iron Replacement Balls, 3/4” Aluminum Balls, 1 solid, 1 w/ Hole Second Law of Motion, Economy, Aluminum

Spark Timer Accelerator Measures acceleration of a falling weight, calculating the speed of a moving cart, or aids in the study of the forces of friction. A paper strip is pulled through the timer while a spark, at a very precise interval, is created burning tiny dots into the paper strip as it passes. The faster the strip moves, the larger the distance between dots making it is easy for the student to calculate the rate of speed of acceleration. Everything on the spark timer is enclosed for safety. Instructions included; 6-1/4” x 2-3/4” x 4-1/4”; 1.75lbs 7-2008 Spark Timer Accelerator

Carbon Disk, Replacement for Spark Timer*

force & mass

Paper Roll, Replacement for Spark Timer; 2-1/4”; .03lb

37

• spring scales

• weights

Hooked Weight Set Tubular Spring Scales Calibrated in both grams and Newtons with transparent bodies and each size is color-coded for identification. (9” x 1-1/4” x 1-1/4”; .11Ib).

The hooked weight set is supplied in a storage case including the following weights: 1-1000 gram, 1-500 gram, 2- 250 gram, 1-100 gram, 1-50 gram, 2-20 gram, 1-10 gram. 6” x 3.5” x 5”; 4Ibs 7-2500-1 Hooked Weight Set

7-G58 Tubular Spring Scales: 250g – 2.5N, Blue 7-G59 Tubular Spring Scales: 500g – 5N, Green Tubular Spring Scales: 1000g – 10N, Brown Tubular Spring Scales: 2000g – 20N, Red Tubular Spring Scales: 3000g – 30N, White Tubular Spring Scales:5000g – 50N, Yellow

· 7-1811

Hooked Weights High-quality weights with hooks fitted through the center allow you to hook weights together in tandem. Shown left to right.

7-2500-10 Hooked Weight, Brass, 500 Grams Hooked weight, Brass, 200 Grams Hooked Weight, Brass, 100 Grams

· 7-1813

Hooked Weight, Brass, 50 Grams Hooked weight, Nickel Plated Copper, 20 Grams

Wave Demonstration Spring Studying waves in physics class can sometimes be difficult for students to conceptualize. This 3” diameter flat spring steel apparatus can make visualizing wave propagation much easier. The plated spring can be stretched across the room allowing the entire class to witness the wave traveling back and forth. (3” x 3” x3”; 1Ib).

7-1813 Wave Demonstration Spring

38

force & mass

Longitudinal Wave Demonstration Great for demonstrating difficult-to-explain resonant waves, such as propagation, reflection, and interference. Two cast metal supports, 15-1/4” tall x 9-1/2” deep, are extended by connector rods making a frame. A white cotton cloth backing is stretched between the frames to help make the demonstration visible. A 3” diameter spring stretches between the frame ends that can be set up to 110cm apart. Spring steel rods at each with adjustable weights at each end provide the vibration that influences the wave frequency. Spring steel rods with adjustable weights provide the vibration that influences the wave frequency. Instructions are provided. (18” x 6” x 11”; 5.2lbs).

Slotted Weight Set w/ Stand

7-1811 Longitudinal Wave Demonstration

7-2500-2 Slotted Weight Set w/ Stand

A useful, slotted weight set supplied on a stand with a handle makes the unit easy to transport and perfect for classroom use.

It contains the following weights: 1- 500 gram, 2-200 gram, 1-100 gram, 1-50 gram, 2-20 gram, 1-10 gram.

Precision Weight Masses Set (8 Pieces) Precisely weighted masses, which are useful with most student balances, are supplied in a plastic storage container. Also included are: 1-50 gram, 1-20 gram, 2-10 gram, 1-5 gram, 2-2grams, 1-1 gram. 8 pieces; 3” x 3” x 1-1/2”; .25Ibs 7-2500-13 Precision Weight Masses Set (8 pcs.)

· 7-1500-4

Slotted Weight Set w/ Hanger Great for Hooke’s Law demonstrations! Supplied with a 50-gram weight hanger and a reusable plastic storage case the set includes:1-50 gram weight hanger, 9-20 grams, 1-10 gram, 2-5 grams.

Nickel-plated copper. 7-1/4” x 3-1/4” x 3-1/2”; .75lbs 7-2500-12 Slotted Weight Set w/ Hanger

Hangers for Slotted Weights The mass hanger is nickel plated and designed for use with slotted weights.

7-2500-4 Slotted Weight: 7 3/4” (196mm) Length · 7-2500-12

· 7-2500-15

Slotted Weight; 5 1/4” (133mm) Length

• mass sets

Square Stacking Mass Set

Excellent for teaching weighing concepts!

Excellent for teaching weighing concepts, the set of square shapes is molded from durable plastic with recesses so the masses are stackable. They are also color coded to correspond with the value of each mass. The weight is molded into the top of each piece. 35 pieces: 20-1gm masses, 10-10gm masses, 5-20gm masses.

· 7-1325

7-1325 Square Stacking Mass Set · 7-1323

Round Stacking Mass Set Excellent for teaching weighing concepts, the set of round shapes is molded from durable plastic with recesses so the masses are stackable. They are also color coded to correspond with the value of each mass. The weight is molded into the top of each piece. 52 pieces: 40-1gm masses, 8-5gm masses, 4-10gm masses. · 7-1324

7-1324 Round Stacking Mass Set

Equal mass set The equal mass set contains samples of tin, aluminum, lead, zinc, copper.

force & mass

7-1323 Equal Mass Set

39

Archimedes’ Principle Bucket and Cylinder This all-metal unit demonstrates the principles of buoyancy and displacement! The cylinder fits into the cup exactly and the whole unit can be hung from a spring scale and weighed. This unit is then lowered into a container of water and the reduction weight noted. Experiments prove that the weight loss equals the weight of the water displaced. Instructions included. (4-1/2” x 1-1/2” x 1-1/2”; .25lb) 7-1505 Archimedes’ Principle Bucket and Cylinder

Force Table (Student) The classic table for studying a combination of forces! A steel support tube, cast legs, leveling screws, and a laminated table top make this unit very stable and highly functional for the study of equilibrium of force. It is supplied with four all-metal precision pulleys, 2 large force rings, 8 small force rings, cords, 4-50 gram weight hangers, slotted weights and instructions. The slotted weights included are: 8 -5 gram, 4 -10 gram, and 36 -20 gram. ;16-1/2” x 16-1/2” x 5-1/4”; 15.5lbs 7-1887 Force Table (Student)

Pendulum Law Demonstration

40

force & mass

Pendulum Clamp For use on support rods to hang weights and pendulums, each unit has three screw clamps for holding one to three strings with weights, 2” apart. 11” x 1-1/2” x 1-1/2”; .5lb 7-1600-7 Pendulum Clamp

Excellent for student exploration of the principles of the pendulum and acceleration due to gravity, this apparatus serves two learning purposes as it allows students to study both pendulum and gravity principles. The pendulum consists of one 1” steel ball, one 1” brass ball and one 1” wood ball, each attached to a piece of string. A pendulum clamp holds them in place. It comes with a sturdy steel support rod and base. Instructions included.

7-1600-2 Pendulum Law Demonstration

Coin & Feather Apparatus (with Glass Tube) Also known as the Guinea Feather Apparatus this provides a great visual demonstration to teach your students about air resistance!

The cylinder is capped with a hard rubber closure at each end and a hose connector at one end, which is used for air evacuation.

When the tube is inverted and the air is removed, the disc and feather will fall at the same rate as the feather does not meet any air resistance. 36” x 6” x 6”; 2Ibs 7-780

Boyle’s Law Apparatus This device is one of the classical forms of Boyle’s Law which are frequently described in experiment manuals. It consists of a funnel tube and a stopcock tube connected together by a piece of flexible tubing which run parallel to one another on aluminum rods. This allows one of the tubes to be raised higher or lower than the other and then locked in place. A meter stick is mounted between the two glass tubes, which allows for the measurement of pressure. This unit stands vertically on top of a cast iron base. Please note, mercury is not included. A heavy-weight oil can be used as a substitute for mercury. 50” x 4” x 6”; 6.2lbs 7-204-2 Boyle’s Law Apparatus Boyle’s Law Replacement Funnel Tube (Not Shown) Boyle’s Law R

Conductivity of Solutions Lets your students actually observe increases and decreases in a liquid’s conductivity! Consists of a molded socket on a PVC cover, provided with binding posts for connection of two wire cords. Two electrodes are internally connected to the lamp circuit. The cover is designed to fit a clear glass tumbler. Light bulb, glass tumbler, and instructions sheets are provided.

(4” x 4” x 5”; .5Ib).

7-310 Conductivity of Solutions w/ Glass Jar

Reveal the flow of convection currents in gases! Reveal the flow of convection currents in gases! The box has a glass front and two chimneys. Place a lighted candle under one chimney, then use the touch paper to introduce smoke over the other chimney to reveal the flow of convection. Includes instructions, smoke paper and candle; 8-1/2” x 3-1/4” x 3-1/2”; 1.75lbs 7-303-1 Convection Apparatus for Gases

Acrylic Lamp Chimney, Used for the 7-303-1 (5” x 2” 2”; .3Ib) Convection of Liquid, Glass frame

gas & liquid

Conductivity of Solutions w/ Plastic Jar*

Convection Apparatus for Gases

41

• EQUILIBRIUM APPARATUS • HYDROMETERS

A useful demonstration of the density of liquids! The hydrometers are made from a borosilicate glass. Sealed inside are paper scales and a metal ballast.

7-804-1

An interesting way to show that liquid levels are independent of shape!

· 7-502-3

7-804-5 · 7-502-4

Hydrometers A hydrometer is an instrument used to measure the specific gravity or relative density of liquids. In other words, the ratio of the density of a particular liquid is measured by its relationship to the density of water. The hydrometer is designed to be placed into the liquid filled hydrometer jar. Heavy liquids: 1.0-2.0 in .01 divisions, Overall Length 11-3/4”; .02Ib). Light liquids: 0.7-1.0 in .01 Divisions, Overall Length 11-3/4”; .02lb.

7-804-1 Hydrometers – Heavy Liquids Hydrometers – Light Liquids

Hydrometer Jar The hydrometer jars are made from a heat-resistant borosilicate glass with a rolled upper edge and a wide support foot. They are perfectly designed for use with our heavy and light liquid hydrometers. 50mm O.D. x 305mm H 7-804-5 Hydrometer Jar (2” OD x 12” H; .05Ib)

Equilibrium Tube w/ Capillary Tubes & Support Stand This apparatus demonstrates that capillary rise is dependent upon the inside diameter of the tube. Four glass capillary tubes of different internal diameters are sealed to a glass manifold. The unit is supported by an acrylic stand. Instructions are provided; 1-1/2” x 6” x 8”; .4lb 7-502-3 Equilibrium Tube w/ Capillary Tubes & Support Stand

Equilibrium Tube – Standard Tubes & Support Stand When connected vessels are filled with a liquid, the liquid will rise to the same level in each vessel, regardless of the vessel’s shape.

Four different shaped glass vessels are sealed to a glass manifold.

The unit is supported by an acrylic stand. Instructions are provided.

1-1/2” x 6” x 8”; .4lb 7-502-4 Equilibrium Tube – Standard Tubes & Support Stand Equilibrium Tube – Standard Replacement Tube (3/4” x 6” x 7-1/2”; .2lb $6.95

Catch Bucket This seamless aluminum bucket with handle is used in displacement experiments. It has a capacity of 300ml. It is designed to catch the overflow for the #1502 overflow can. 3-1/2” x3-1/2” x 3-1/2”; .25lb 7-1503 Catch Bucket

42

gas & liquids

Overflow Can A useful lab tool, excellent for displacement experiments and density measurements, the overflow can is made of a seamless aluminum and has a pour spout. 4” x 4” x 5.5”; .31lb 7-1502 Overflow Can

Order toll free 1.800.289.9299 or visit our website: www.ginsbergscientific.com

Fermentation Tubes Used for the fermentation of carbohydrates and for collecting the gases that are produced. All include a foot.

7-601-2 Fermentation Tube: 10ml Capacity; 5” x 3” x 7”; .3lb Fermentation Tube: 5ml Capacity; 5” x 3” x 7”; .3lb

Hand Vacuum Pump Supplied with a pressure gauge that reads in both centimeters and inches of mercury, the vacuum pump’s rate is 15ml per stroke. It will displace up to 725ml of air and is fitted with a valve to release the vacuum without disconnecting the pump. Includes instruction sheet.

7-206-1 Vacuum Pump, w/ Gauge (10-1/4” x7-1/4” x 2”; .75lb)

· 7-1298

· 7-1300

· 7-1821

Lecture Table - Manometer Large enough to demonstrate pressure of gas and liquid, as well as liquid oscillation to a large class! This manometer consists of a glass U-tube, open at one end and fastened to a 15 x 58.5 cm hardwood backboard held upright by a metal support base, with a meter scale mounted between the arms of the tubes for easy-toread measurements. The large size makes this Manometer easily viewed in a classroom. Instructions included. Overall length 109cm, length of glass 100cm.

7-1298 Manometer, Lecture Table

· 7-810

Complete Manometer A Manometer is used for measuring pressure using liquid columns in vertical or inclined tubes. This is perfect for in class experimentation and observation. Instructions included. 25” x 8” x 8”; 3lbs 7-1300 Complete Manometer

· 7-805

· 7-806

Viscosity Tube Demonstration Apparatus

A modern application of the famous 17th-Century experiment, you can demonstrate the force of air pressure without a vacuum pump.

When the two cups are pressed together, the air is evacuated and a vacuum is created, separating the discs will be an interesting challenge for your students. The Magdeburg Hemisphere experiment is a classic in the field of teaching about vacuums!

The viscosity of four different liquids can be visually compared with this apparatus! Fill each tube with a different weight fluid and a 3/8” plated steel ball. The balls are lifted just above the line on the tube with a neodymium magnet and then released. Students compare the time it takes for the balls to fall through the weighted liquids and settle on the bottom of the tubes. Includes 4 acrylic tubes. Instructions provided. Liquids not included. Recommended liquids: water, various weights of motor oil, mineral oil, vegetable oil, dish washing liquid, corn syrup, glycerin, sugar water, fruit juices, and various shampoos.

7-805

7-1821 Viscosity Tube Demonstration Apparatus

Magdeburg Hemisphere

Magdeburg Hemisphere, Rubber

Magdeburg Hemisphere, Cast Iron MIni Madgeburg Hemisphere

Economy ball & Ring

7-1867 Specific Gravity Cylinder

7-198-A Economy Ball & Ring: 12”; .4lb

Specific Gravity Cylinder

gas & liquid

Determine the specific gravity of common metals using the specific gravity cylinders! Four 13 x 50mm cylinders of aluminum, brass, steel and copper. 3-1/4” x 3” x 1”; .08Ib

Introduce students to the concepts of expansion and contraction using the ball and ring. The unit demonstrates the expansion of metal when heated and its contraction when cooled. When either the ball or ring is heated, the ball will not pass through the ring. When cooled, however, the ball will pass through the ring freely. The ball and ring are mounted on insulated wooden handles to protect hands from the heat.

43

Steam Generator A useful accessory for many experiments involving thermal energy such as the Linear Expansion Apparatus! Constructed of heavy gauge aluminum to prevent corrosion and collapsing under a vacuum, it consists of a boiler, sample cup, tripod and two rubber stoppers with and without hole. The boiler is 100mm x 170mm; the stand measures 240mm in height. Requires a bunsen burner or hot plate. 5” x 11-1/2” x 6”; .75Ib 7-1873 Steam Generator

$29.95

Water Trap Principles of condensation and evaporation are visually illustrated by this simple device. This Water Trap provides an inexpensive way of demonstrating this elementary concept. The unit is used to capture condensed steam water vapor. It allows steam to move through the trap, but the water remains. Made completely of glass; without side arms.

7-2301 Water Trap- w/out Side Arms

Calorimeter - Electric The cover of the electric calorimeter contains a mounted heating coil of about 1.5 ohms resistance with standard binding posts for electrical connections. When connected to a 6-volt battery, this coil will cause a temperature rise of about 5 degrees centigrade in 10 minutes. The unit is designed to help students determine the electrical equivalent of heat. The supporting posts and coil are coated to prevent electrolysis. It is provided with an insulated handle, stirrer, and a single-hole rubber stopper. 4” x 4” x 7”; .34Ib 7-304-2 Calorimeter - Electric

Conductivity of Solutions Lets your students actually observe increases and decreases in a liquid’s conductivity! Consists of a molded socket on a PVC cover, provided with binding posts for connection of two wire cords.

Two electrodes are internally connected to the lamp circuit. The cover is designed to fit a clear glass tumbler. Light bulb, glass tumbler, and instructions sheets are provided. (4” x 4” x 5”; .5Ib).

7-310 Conductivity of Solutions w/ Glass Jar

44

heat

Heat Conductometer - 5 Rods Five different metal spokes, aluminum, steel, brass, copper and nickel, extend from a center hub which is connected to a wooden handle. When the hub is heated, students watch as wax falls from each spoke in the order of conductivity. Includes wax and instructions. 12” x 8”; .4Ib 7-312

Heat Conductometer - 5 Rods

Deluxe Linear Expansion Apparatus A different way to determine the coefficient of expansion of metals! The rod to be tested is placed inside a tube that has both an inlet and outlet for steam. Students are to compare the expanded length of the rod to the temperature difference before and after the rod expands by using a thermometer. The extent of the rod’s expansion is measured by a micrometer. The binding post allows you to create an electrical circuit to signal when the rod expansion reaches the micrometer. Provided with 4 rods: Aluminum, steel, copper, and brass. Instructions are provided. Micrometer is screw form.

7-1206 Deluxe Linear Expansion Apparatus

Simplified Stirling Engine A demonstration of one of the first 19th century attempts to produce an environmentally sound, economic, and efficient power source.

The heat from a small candle sends this Stirling Engine model into oscillation almost immediately. Easy to construct, this unit very visibly demonstrates the Stirling Engine principle. A test tube acts as the cylinder and four marbles work as a transfer piston. As air is heated on one end of the transfer cylinder, it causes the air to expand and move into the cooler end of the cylinder. Here the air cools and contracts; causing the cylinder to lower, and the cycle begins again. Instructions included. (11” x 2” x 5-1/2”; .5lb).

7-1896 Simplified Stirling Engine

Tyndall’s Heating Apparatus The Tyndall’s Heating Apparatus is a simply and effective way to illustrate thermal conductivity! The unit consists of four metal balls: steel, aluminum, copper, and brass. The balls are heated and dropped onto a suspended wax sheet. By watching the balls melt through the wax at different rates, students get a good idea of the heat capacity of various metals. Instructions provided. (16” x16” x7”; .5Ib).

7-2100 Tyndall’s Heating Apparatus

Compound Bar A dramatic demonstration of the thermostatic principle by showing the unequal expansion of two different metals. The bar consists of a bi-metal strip mounted in a wooden handle. The bar bends when heated. Instructions provided. 10” x 3/4” x 3/4”; .2Ib. 7-309 Compound Bar

heat 45

• lenses · 7-909-8

· 7-909-1

Double Concave (Unmounted w/ Ground Edges)

KEY CHAIN LASER POINTER This new 2 3/4” laser pointer is available in three colors (red, purple & black) and comes with 5 different heads that project different shapes: Standard Point, Arrow going through two hearts, Hand in the shape of Victory/Peace, Six Point star with point in center and Cascading Boxes with point in center. Laser light is red. Key chain is included for added convenience.

Superior quality lenses are useful for teaching a variety of optical principles. Double concave lenses have two inwardly curved surfaces, a negative focal length, and are often used to aid in the distribution of light, as well as, image reduction.

7-909-8 38mm D. x 10cm. F.L. 38mm D. x 15cm. F.L.

7-1321 Key Chain Laser Pointer

38mm D. x 20cm. F.L. 50mm D. x 20cm. F.L 50mm D. x 10cm. F.L.

· 7-1404-12

75mm D. x 20cm. F.L.

Double Convex (unmounted w/ ground edges) Superior quality lenses are useful for teaching a variety of optical principles. Double convex lenses have two outwardly curved surfaces and a positive focal length.

7-909-1 38mm D. x 5cm. F.L. 38mm D. x 10cm. F.L. · 7-1404-9

38mm D. x 15cm. F.L. 38mm D. x 20cm. F.L. 38mm D. x 30cm. F.L. 50mm D. x 5cm. F.L.

Color Filters Five-color sets of acrylic color filters are ideal for optical transmission measurements, solar monitoring, attenuation of laser beams, and demonstrations of laser light’s monochromatic character.

7-1404-9 Color Filters, Gelatin Pack of 5 (4” x4”; .001Ib) Color Filters, Acrylic Pack of 5 (2” x2”; .01Ib)

50mm D. x 10cm. F.L. 50mm D. x 15cm. F.L. 50mm D. x 20cm. F.L. 50mm D. x 25cm. F.L. 75mm D. x 17.5cm. F.L. 100mm D. X 20cm. F.L.

• lens sets

7-909-13

LENS SET - Glass

46

light & sound

This set contains one each of the following 38mm diameter lenses: double-convex, plano-convex, double-concave, plano-concave, concave-convex, and convex-concave.

Neutralization Lens Set

7-909-13 Lens Set 38mm D. (6/set)

Two 38 mm spherical lenses; one is a double concave, the other a double convex, each with a focal length of 150mm. When placed together the net focal length is zero. (1-1/2” x 1-1/2” x 1/4”; .005Ib).

LENS SET - glass

7-909-20 Neutralization Lens Set/2

This set contains one each of the following 50mm diameter lenses: double-convex, plano-convex, double-concave, plano-concave, concave-convex, and convex-concave.

7-909-14 Lens Set 50mm D. (6/set)

Magnifiers These magnifiers are perfect for field trips and are priced reasonably to allow each student to have one of their own!

Magnifiers: Plastic Frame and Handle 7-1009 Diameter 2”, 3X Diameter 2.5", 2X Diameter 3”, 1.5X Diameter 6”, 3X

Lens & Prism Sets These lens sets offer a variety of options for optical experiments.

7-909-81 Lens & Prism Set - Acrylic 7 pcs

Lens & Prism Set / Glass 7 pcs One surface has been frosted to aid in revealing the path of a light.

7-909-82 Lens & Prism Set - Glass 7 pcs

mini Magnifiers: Plastic Frame and Handle 7-1019 Diameter 2.5", 3X

Magnifiers: Chrome Rim & Plastic Hand 7-1013 Diameter 2.5”, 2X Diameter 4", 1.5X

1. Fresnel Lens Fresnel Lenses have the ability to duplicate the optical effect of a very thick lens. Image quality is reduced when using this lens, however, the benefits of the lens is found in its ability to enlarge the visual image of the object being displayed. The many applications of the Fresnel Lens makes it a valuable tool in various industries and technologies. Originally, used in lighthouses, they are now an important part of the automotive, medical, electrical, aeronautical, entertainment, photography, and medical fields.

1

7-909-68 Fresnel Lens – Pocket Lens w/ Holder Fresnel Lens – w/ 25 Frames (not shown) 2

2. Bug Viewer, Magnifying Great for field trips, the bug viewer allows for close, critical examination of bugs. It is so inexpensive, each student can have their own.

With a 2.5X acrylic lens, bugs are magnified to show fine details. The grid system incorporated into the 5cm square bottom opening can be used as a gauge to compare size and proportions.

7-1017 Bug Viewer, Magnifying

3. Pocket Microscope Illuminated 30x

3

7-1389 Pocket Microscope

Light & Sound

An easy to focus 30x pocket microscope, this is great for indoor or outdoor use. The protective case is included. Requires 2 “AA” batteries which are not included.

47

mirrors

Glass Mirrors (Silver Backed w/ Ground Edges)

· 7-1301-L

Economical, good for all types of optical applications!

7-1301-5 1” x 3” 2” x 3” 2" x 6" 4” x 4” 4” x 6” · 7-1301-5

Glass Spherical Mirrors (Silver Backed, Concave) Glass Mirrors

7-1301-I 5cm D x 5cm FL

The economical glass mirrors with silver backing and ground edges are great for all types of optical applications. They come in a variety of sizes and either rectangular or spherical shapes and concave or convex. Mirrors are great for numerous applications. They demonstrate reflection and refraction simply and effectively. They are an easy way to tech the principles of optics.

Glass Spherical Mirrors (Silver Backed, Convex)

7-1301-N Concave/Convex; Silver Backed; 7.5cm D x 25cm FL

7-1301-K 5cm D x 5cm FL

U Convex; 50mm D x 10cm FL

7-1301-J 7.5cm D x 7cm FL

7.5cm D x 7.5cm FL

Convex; Concave; 50mm D x 15cm FL

37mm D x 50cm FL

acrylic mirror The plane acrylic mirror is sturdy for classroom use. 4-1/2" X 3"; packaged in a paper sleeve.

7-1301-7 Acrylic Mirror, Plane, 4.5 x 3"

Demonstration Mirror The large size allows for classroom demonstrations! Available in both parabolic and spherical.

7-1301-3 Large Mirror - Spherical, Convex 40.5cm Diam. x 37 FL (16” Diam.; 1lb) Large Mirror - Parabolic, Convcave 40.5cm Diam. x 68FL (16” Diam.; 1lb)

Plexiglass Mirror

48

light & sound

Mirrors are great for numerous applications. They demonstrate reflection and refraction simply and effectively. They are an easy way to tech the principles of optics. The mirror is made of Plexiglass.

7-1301-M

Plexiglass Mirror, Silver Backed; 2-1/2" x 3-1/2" x 1/8"; .01lb

• optical benches

· 7-1404

Student Demonstration Optical Bench The apparatus is used to demonstrate basic optics principles at an economic cost. Includes: one 100cm meter stick, two meter supports, two object markers and screen supports, one screen, one 38mm lens support. Instructions are provided. (42” x 3-3/5” x 2-1/4”; 2lbs).

7-1404 Student Demonstration Optical Bench

· 7-1404-1

· 7-1404-2

Compact Optical Bench This unique optical bench is completely self-contained and extremely compact! The anodized aluminum channel opens up to form a long two-meter bench, allowing testing of longer than usual focal length lenses. The bench can also be used as two individual one-meter optical benches. The exclusive design of the lens holders allows instant changing of lenses and accessories without fussing with clips or screws. The holders slide smoothly along grooves molded within the case. Everything except the light sources fold up quickly into a package slightly over 1/2 inch thick and can be set up in under one minute! Comes complete with two aluminum benches, six different 38mm lenses, two optical screens, two object markers, four lens holders, plus one mini flashlight with clips and one mini candle which provide your light sources. Instructions are provided; 42-1/2" x 4" x 2-1/2"; 3.75lbs.

7-1404-20

Compact Optical Bench

· 7-1404-5

· 7-1404-7 · 7-1404-3

7-1404-1 Meter Supports Object Marker/Screen Support Single Candle Holder Object Screen Lens Support (Will hold a 38mm Lens or Mirror)

Optical Bench – Light Source The light source consists of a molded receptacle with two outlets, a clip for holding an object screen with a metal support for attachment to a meter stick, connecting cord, and a keyless socket with 7.5 watt/115v lamp. (81/4” x 3-3/4” x 3-3/4”; .5lb).

7-1404-8 Optical Bench – Light Source

Light & Sound 49

• prisms

Prisms are essential tools for teaching about light refraction and dispersion and come in a variety of shapes and sizes Prisms are essential tools for teaching about light refraction and dispersion and come in a variety of shapes and sizes.

7-909-95

(A): Acrylic 7-909-64 Equilateral (A) (3" x 1") Equilateral (A) (1" x 1") 7-909-69 Right Angle (A) (1" x 3/4") Equilateral (A) (1" x 2") Equilateral (A) (1" x 3") Right Angle (A) (1" x 2") Equilateral (A) (1" x 1/2")

(G): Glass 7-909-70 Equilateral (G) (25mm x 50mm)

Equilateral (G) (25mm x 75mm) Equilateral (G) (25mm x 100mm) Right Angle (G) (32mm x 50mm) Equilateral (G) (25mm x 150mm) Right Angle (G) (100mm x 10mm) Equilateral (G) (42mm x 32mm)

Vertical Resonance Tube Apparatus Let your class measure the velocity of sound in air! After partially filling the resonance tube with water, sound a tuning fork of known frequency at the tube’s open upper end. Then the water level can be adjusted until the air in the tube resonates at the same frequency as the tuning fork, increasing the volume of the sound. The apparatus consists of a water reservoir, glass resonance tube marked in increments of 1mm, a support stand and two clamps to hold the tube in position. Instructions provided. (7-1/2” x 5” x 3’ ; 7Ibs).

7-1806 Vertical Resonance Tube Apparatus Resonance Tube

7-909-78

7-909-79

Glass Refraction Plate The glass refraction plate is most commonly used to index light refraction.

7-909-78 Glass Refraction Plate (2 3/4" x 2 3/4" x 1/3")

50

light & sound

Glass Equilateral Refraction Prism When light is bent through a glass prism, refraction of that light causes a rainbow of color to be displayed. The wavelengths of each color bend differently though the prism which is demonstrated using the prism.

7-909-79 Glass Equilateral Refraction Prism (3” x 5/16”)

TUNING FORK MALLET 7-20-28 Tuning Fork Mallet, 1” Diameter

advanced Spectrometer Designed for easy set-up and use, this spectrometers sturdy iron base incorporates a 20cm-diameter divided table with highly visible etched graduations and a Vernier scale that can be read to a resolution of 1 minute of arc. The revolving 7cm-diameter prism support rotates 360 degrees and has a height adjustment of 2cm, thereby accommodating a wide range of test conditions. A built-in illuminated auto collimator eliminates the difficulty of telescopecollimator alignment. Perfect for more advanced experiments and lab environments. Instruction manual included.

7-1925 Advanced Spectrometer

Basic Spectrometer

7-1113 Radiometer

7-1928 Basic Spectrometer

Radiometer

Light & Sound

A fun, vivid way to demonstrate heat transfer! The wings in the radiometer are alternately dark and light. When the light strikes the wings, it transfers heat to each one, but not at the same degree.

The light wings reflect the rays and the dark wings absorb the rays.

As the light gets brighter it creates more heat and spins the wings faster. 7� x 3-2/5� x 5�;.25lb

This is a perfect device for intermediate to high school level laboratories. It is built from sturdy metal and includes an adjustable collimator tube, telescope, and prism stand. The high quality optical system and easy to read etched scale allows students to measure spectrum lines with a resolution of 50A. Light is directed in the collimator tube and focused to the adjustable telescope, which has a scale inside for allowing special lines to provide reliable measurement. Includes a 600-line millimeter diffraction grating, grating holder, 3x2.5cm equilateral glass prism, and a prism hood, which helps block stray light from entering the spectrometer. Instruction manual included.

51

Perforated Goggles These impact goggles are made from soft vinyl to fit the face comfortably and fit over regular eyeglasses. Perforations prevent fogging and provide protection from particles while offering a wider view of the work area than traditional impact goggles.

7-1383

Large Goggles

Small Goggles

· 7-1050

Apron Built for durability and protection from everything from natural materials to chemicals the rubberized cloth apron is impermeable and easy to clean. Available in a variety of sizes, it can be used for any activity a science class offers. Great for 5th grade science to college level classes. It is a perfect choice for dissections, college level chemistry, or professional lab work! It is flexible and acid-resistant making it a functional classroom must have. Pictured: 7-1050

Alcohol Burner

7-1050

Apron Size: 36”x 27” (.47lb)

Apron Size: 42”x 27” (.56lb)

Our alcohol burner is designed for use with any experiment requiring low heat. Almost every science class needs a small heat source. The polished metal alcohol burner is much safer than a glass burner. The flame can be easily adjusted by rotating the ratcheted wick control wheel. The air cap is securely attached to the burner by a matching polished chain. 4-1/2" x 3" x 4-1/2"; .5lb;150ml Capacity.

Apron Size: 42”x 36” (.67lb)

7-000-104 Alcohol Burner

Apron Size: 46”x 36” (.77lb)

Alcohol Lamp Replacement Wicks, pk/10

Economy Bunsen Burner This is an economically priced adjustable Bunsen burner. The 3” base is constructed of heavy duty cast iron which provides an extra measure of stability and safety. Height: 5.75” 7-1394

Economy Bunsen Burner

Two Way Burner Stand The stand is ideal for use with our alcohol burner. The base is made from 3/16” stainless steel rod with a plated steel mesh top. Stand can be used in either high or low positions.

52

labware

7-1372

• bottles

· 7-409-1

· 7-409-7

· 7-406-6 · 7-408-6

Flint Bottles

Amber Bottles

(French Square w/ Dropper Assemblies)

(Boston Round, w/ Dropper Assemblies)

High quality and durable, the French Square Flint Bottles w/ droppers have countless classroom uses. The glass is non-porous allowing for easy cleaning or autoclaving.

High quality and durable, the Boston Round Amber Flint Bottles with droppers have countless classroom uses. The glass is non-porous allowing for easy cleaning or autoclaving.

7-406-2-DZ

7-405-2-DZ

1/2oz., 20/400; 12 pieces

1/2oz., 18/400; 12 pieces

1/2oz., 20/400: 144 pieces

1/2oz., 18/400; 144 pieces

1oz., 24/400: 12 pieces

1oz., 20/400; 12 pieces

1oz., 20/400; 144 pieces

7-406-3-GR 1oz., 24/400; 144 pieces 7-406-21-DZ 2oz., 28/400; 12 pieces

2oz., 20/400; 12 pieces

2oz., 28/400; 144 pieces

2oz., 20/400; 144 pieces

8 oz., 43/40, w/out dropper

4oz., 22/400; 12 pieces

4oz., 22/400; 144 pieces

8oz., 28/400; 12 pieces

Flint Bottles (Boston Round, w/ Caps) High quality and durable, the Boston Round Flint Bottles with caps have countless classroom uses. The glass is non-porous allowing for easy cleaning or autoclaving.

7-409-1-GR

Amber Bottles

1 oz., 20/400; 144 pieces

(French Square, w/ Dropper Assemblies)

4 oz., 22/400; 12 pieces

8 oz. 24/400; 12 pieces

High quality and durable, the French Square 1oz Flint Bottles with droppers have countless classroom uses. The glass is non-porous allowing for easy cleaning or autoclaving.

16 oz., 28/400; 12 pieces

32 oz., 33/400; 12 pieces

32 oz., 33/400; 144 pieces

Flint Bottles (Boston Round, w/ Dropper Assemblies) High quality and durable, the Boston Round Flint Bottles with droppers have countless classroom uses. The glass is non-porous allowing for easy cleaning or autoclaving.

7-406-6-DZ

1 oz. 18/400 w/ Dropper; 12 pieces 1 oz. 18/400 w/ Dropper; 144 pieces

Amber Bottles (Boston Round, w/ Caps) High quality and durable, the Boston Round Amber Flint Bottles with caps have countless classroom uses. The glass is non-porous allowing for easy cleaning or autoclaving.

7-408-1-DZ

1oz., 20/400; 12 pieces

1 oz., 20/400; 12 pieces

4oz., 20/400; 12 pieces

1 oz., 20/400; 144 pieces

8oz., 28/400; 12 pieces

2 oz., 20/400; 12 pieces

16oz., 28/400; 12 pieces

2 oz., 20/400; 144 pieces

32oz., 33/400; 12 pieces

7-409-7-DZ

labware 53

• bottles

· 7-413-1

· 7-413-2

· 7-411-7 · 7-413-03

· 7-404-2

· 7-410-2 · 7-412-2

Cobalt Blue Bottles (w/ Dropper Assemblies) These Boston Round Cobalt Blue dropping bottles are a necessity in any lab for dispensing indicator stains or prepared reagents. The dropper assembly threads onto the bottle sealing in the contents.

7-413-01-DZ

1 oz; 12 pieces

2 oz; 12 pieces

4 oz; 12 pieces

Flint (Reagent Bottles) Regent bottles are used for a variety of lab applications such as storage of chemicals, solutions, solvents, etc.

7-411-5 60ml; ea

125ml; ea

250ml; ea

500ml; ea

1000ml; ea

Dropping Bottle (w/ Ground Glass Joint & Pipette) These dropping bottle w/ ground glass pipettes can be used in your lab to dispense indicators, stains or prepared reagents. The pipette is designed to deliver a .05 ml drop. The bulb is removable and replaceable.

7-404

30ml; ea

Barnes Bottles (w/ Straight Dropper) This square shaped flint glass bottle with a straight glass pipet and a red rubber bulb stopper. The stopper and pipet hold 1.5 mL. Great for storing a variety of chemical reagants. 30 ml = 1 oz.

7-207 30ml; 144 pieces 7-207-36 30ml; 36 pieces

30ml; 144 pieces

30ml; 12 pieces

60ml; ea

Specimen jars (Flint, Wide Mouth w/ Plastic Caps) Flint glass is known for its optical qualities of light transmission and chemical resistance making them perfect for lab use.

Weighing Bottles Weighing bottles are round, clear glass, and come with stoppers.

7-413-1 10ml; 25 x 40mm; ea 20ml; 30 x 50mm; ea

54

labware

7-410-2 53/400, 2 oz.

70/400, 8 oz.

specific gravity bottles

89/400, 16 oz.

Specific gravity bottles, uncalibrated w/ ground glass topper, 25 ml

89/400, 32 oz.

7-412-2

Specific Gravity Bottles

• droppers

· 7-1300-4A

· 7-1300-6A

Dropper Assemblies for Bottles Dropper Assemblies allow for replacement of worn out parts and come in a variety of common sizes. The bulbs are made from a synthetic material which contains no latex.

Medicine Droppers

18/400 7 x 60 mm, 1/2oz; 12 pieces

Available in either plastic or glass these medicine droppers come in a variety of sizes and quantities to best suit your needs.

18/400 7 x 60 mm, 1/2oz; 144 pieces

7-1300-12A 3”; Straight Plastic; 12 pks of 12

18/400 7 x 75 mm, 1oz; 12 pieces

20/400, 7x60mm, 1/2oz; 144 pieces

7-407-2-DZ

20/400 7 x 76 mm, 1oz; 12 pieces

20/400 7 X 76 mm, 1oz; 144 pieces

20/400 7 X 89 mm, 2oz; 12 pieces

20/400 7 X 89 mm, 2oz; 144 pieces

3”; Straight Plastic; 144/pk 3”; Straight Plastic; 1,000/pk 3”; Straight Glass; 12 pks of 12 3”; Straight Glass; 144/pk 7-1300-5B 3”; Straight Glass; 1,000/pk 3-1/2”; Bent Glass; 12 pks of 12 3-1/2”; Bent Glass; 144/pk

22/400 7 x 108 mm, 4oz; 12 pieces

22/400 7 x 108 mm, 4oz; 144 pieces

3-1/2”; Bent Glass; 1,000/pk

24/400 7 x 75 mm, 1oz; 12 pieces

3-1/2”; Straight Glass; 12 pks of 12

24/400 7 x 75 mm, 1oz; 144 pieces 24/400 7 x 130 mm, 8oz; 12 pieces 24/400 7 x 130 mm, 8oz; 144 pieces

28/400 7 x 130 mm, 8oz; 12 pieces

3-1/2”; Straight Glass; 144/pk 4”; Straight Glass; 12 pks of 12 4”; Straight Glass; 144/pk 4”; Straight Glass; 1,000/pk

· 7-207-1

· 7-207-2

Barnes Droppers

Dropper Bulbs

Replacement droppers that fit the Ginsberg #7-207 Barnes Bottles

Bulbs may be used with droppers or pipettes.

7-207-1-DZ

7-210-1-DZ Black; 1ml Capacity; 12 pieces

Straight w/ Red Bulb; 12 pieces

Bent w/ Red Bulb; 12 pieces

Bent w/ Red Bulb; 144 pieces

Black; 5ml Capacity; 12 pieces Black, 1 oz.; ea

labware 55

• burettes

Burette (Borosilicate Glass w/ (PTFE) Stopcock) The high quality borosilicate glass burette with a stopcock is perfect of students because the stopcock is almost freeze-proof.

7-208-3 25ml Capacity 7-208-4 50ml Capacity 100ml Capacity · 7-208-5

Burette (Borosilicate Glass w/ Ground Glass Stopcock) The straight bore stopcock burette has permanent and accurate graduation lines. Class A. 7-208-10

· 7-208-1

25ml Capacity 50ml Capacity 100ml Capacity

Automatic Burettes w/ Ground Glass Stopcocks & Clear Storage Container The Automatic Burette has a ground glass stopcock with a clear storage container for storing and dispensing standard solutions. It includes a clear reservoir bottle with a rubber stopper; self-leveling burette, which is made of borosilicated glass and is permanently graduated; a rubber atomizer bulb; and a glass tube connector. It is numbered every 1ml and has .1ml subdivisions.

7-208-20 10ml Capacity 25ml Capacity · 7-208-20 (Close-up Top View)

tomatic Burettes w/ Ground Glass Stopcocks and Amber Storage Container The Automatic Burette has a ground glass stopcock with an amber storage container for storing and dispensing standard solutions. It includes an amber reservoir bottle with a rubber stopper; self-leveling burette, which is made of borosilicated glass and is permanently graduated; a rubber atomizer bulb; and a glass tube connector. It is numbered every 1ml and has .1ml subdivisions.

7-208-23 25ml Capacity

tomatic Burettes w/ Ground Glass Stopcocks (Replacement Tube Only) 7-208-24 10ml Capacity 25ml Capacity · 7-208-20

Glass Connector Featured above in product #7-208-20 7-208-2x2

56

labware

Glass Connector, Bend 2x2, (for Auto Burettes)

ttes Stopcocks

Helpful hints to maximize product use!

Helpful hints to maximize product use!

Grease an All Glass Stopcock (1) First, clean the stopcock.

(2) Then, apply two rings of stopcock grease around the stopcock.

Be careful to avoid getting grease in the hole (3) Finally, insert the stopcock into the burette and twist a few times to distribute the grease.

Freeing Frozen Stopcocks

Automatic Burettes w/ Burette Tip Assembly The burette tip is attached with a synthetic latex tube, and a glass bead inside the tube is used as a valve to control the liquid flow.

The “Bead Valve” used in conjunction with a Burette tip is a very simple, precise, and effective way of controlling the flow of a liquid.

By slightly squeezing the glass bead within the rubber tubing, the diameter of the tubing is deformed and allows fluid to pass.

The most common reason for a frozen stopcock is lack of thorough previous cleaning.

Once the stopcock is stuck, some options are: (1) Submerge the entire barrel and plug in fresh soda. Soak until the soda is no longer bubbling. Often the bubbles will work into the joint and loosen it. This may take several attempts.

(2) If you’ve tried the soda a few times to no avail, try applying a low level of heat, and applying only a modest amount of pressure.

Don’t forget to wear gloves.

(3) If the heat doesn’t work, try soaking the burette in water for a few days.

(4) After soaking, attempt the soda process again. If this doesn’t work, most likely the glass surfaces of the plug and barrel have been fused with a contaminant, and the burette will have to be replaced.

· 7-bt-500flnt

· 7-bt-500amb

Automatic Burettes w/ Burette Tip Assembly & storage Container When using the automatic burrette w/ tip assembly, you will find that the bead valve allows control of the flow of liquid thus adding validity to experiments.

7-208-31

Automatic Burrettes (25ml) w/ Assembly & Container (Clear)

bt-500flnt Flint Bottle Reservoir, 500ml, 63/400

Automatic Burrettes (25ml) w/ Assembly & Container (Amber)

A borosilicate glass centrifuge tube, with a conical bottom. Graduated and ungraduated styles available.

7-307-1-GR-DZ 15ml; 12 pieces 15ml; 144 pieces N-DZ 15ml; 12 pieces

labware

bt-500amb Amber Bottle Reservoir, 500ml, 53/400

Centrifuge Tubes

57

clamps

· 7-G37

· 7-G80

Test Tube Brush It is a good practice to replace your brushes regularly to prevent scratching your glass and plastic laboratory products. Find the brush of your choice in either natural or nylon bristles.

7-1025

17mm D. x 50mm L. x 150mm Tl., Natural

25mm D. x 75mm L. x 200mm Tl., Natural

35mm D. x 75mm L. x 240mm Tl., Natural

17mm D. x 50mm L. x 150mm Tl., Nylon

25mm D. x 75mm L. x 200mm Tl., Nylon

35mm D. x 75mm L. x 240mm Tl., Nylon

· 7-G86

Black bristle cylinder & bottle Brush 7-1031 Nylon; 2 X 5 X 13 , DZ

· 7-1386

51mm D. x 152mm L. x 430mm Tl., DZ

Black bristle Beaker Brush 7-1033 Nylon; 76mm D. x 152mm L. x 330mm Tl., ea Nylon; 76mm D. x 152mm L. x 410mm Tl. , ea

bristle Burette & Pipette Brushes 7-1035 Natural; 13mm D. x 83mm L. x 760mm Tl., Burette Nylon; 19mm D. x 92mm L. x 760mm Tl., Burette Nylon; 19mm D. x 89mm L. x 430mm Tl., Pipette

Burette Clamp Single Coated Jaws Coated jaws provide a secure grip! With cast aluminum clamp and nickel-plated thumbscrew. The clamp will accept a tubing range of 3/8” to 1-3/8” in diameter.

7-G37

Burette Clamp Single - Coated Jaws Burette Clamp Single - Uncoated Jaws

Double Burette Clamp This cast iron clamp will hold two burettes or the arm of an Electrolysis Apparatus securely. The arm rotates in two directions, front to back, and in a 360 degree rotation.

7-G80

Double Burette Clamp w/ Plastic Coated Jaws

Double Burette Clamp Two burettes can be held in a vertical position using the double burette clamp. The jaws are rubber-coated to prevent slippage and will rotate and lock in any position. The clamp will accept a tubing range of 3/8” to 1-3/8” diameter.

7-G86

Double Burette Clamp w/Rotating Jaws

Double Burette Clamp Beaker Tongs

58

labware

Beaker tongs are used for handling beakers with a 50-2000ml capacity. Measure 10” long and have a firm but gentle grip.

7-G72 Nickel-Plated Steel; Coated Jaws

Holds two burettes from micro to 100ml. Simply compress mechanism, insert burette, and release. Constructed of light weight aluminum with baked-on chemical resistant enamel finish. Unit attaches to standard support rods up to 5/8”.

7-1386

Double Burette Clamp

Hooks Collars A versatile support for various lab elements.

Great for suspending pulleys and spring scales, among others!

7-G49

Hooks Collar 13mm ID

Hooks Collar 19mm ID

· 7-G76

· 7-G78

Extension Clamp Burette Clamp Lincoln Type Hold burettes securely by making three-contact point! Zinc plated, stamped steel with steel thumbscrew. Can be used with rods up to 3/4” in diameter. The distance between the two burettes is 7 1/4”.

7-G76

Constructed of cast aluminum. Three cork-lined prongs hold flasks securely. A right-angle clamp such as the #7-G39 or #7-G65 will hold the clamp to a support stand. The jaws open to a maximum capacity of 3”. Overall length 9.5”. (1Ib).

7-G30

Extension Clamp

Burette Clamp Lincoln Type

Burette Clamp -“V” - Jaw

C-Clamps

The “V” shaped angle provides a secure grip! The jaws are plastic coated. The aluminum clamp will rotate and lock in any position.

7-G78

C-Clamps come in a variety of sizes and are used to secure items firmly to a workbench or table. They are made of cast iron with a corrosion resistant finish.

Burette Clamp, “V” Jaw, Coated N Burette Clamp, “V” Jaw, Uncoated

7-G102

C-Clamp 2”

C-Clamp 3”

C-Clamp 4”

C-Clamp 5”

C-Clamp 6”

Thermometer Clamp A polished aluminum clamp which will rotate and lock into any position. The clamp will hold a standard-size thermometer securely to a support rod. The clamp will accept rods up to 1/2” in diameter, and will rotate 360 degrees and lock into place.

7-G79

7-G56

Thermometer Clamp

7-G33

Crucible Tongs

Microscope Slide Clamp Heavy gauge nickel-plated steel clamp.

7-G33

Tongs, Nickel Steel; 8” Long

Tongs, Stainless Steel; 10” Long

labware

7-G36 Microscope Slide Clamp 6” x 1.5”; .012lb.

The crucible tongs are strong and dependable for carrying crucibles or evaporating dishes. The nonbinding joint allows smooth operation.

59

· 7-G65

· 7-G85 · 7-G81

Right Angle Clamp Holder (Cast Iron) Made of cast iron with an enamel finish and nickel-plated thumbscrew. Adjusts to fit rods up to 5/8” in diameter.

7-G39

Right Angle Clamp Holder (aluminum) Made of cast aluminum with an enamel finish and nickel-plated thumbscrew. Adjusts to fit rods up to 5/8” in diameter.

7-G65

Right Angle Clamp Holder, Aluminum

Adjustable Clamp holder (aluminum) The advantage of the adjustable aluminum clamp holder is that the construction incorporates a swivel that can be adjusted to 360 degrees and locks in place with a nickel plated steel thumbscrew.

7-G85

G41

Right Angle Clamp Holder, Cast Iron (Not Shown)

Adjustable Clamp Holder, Aluminum

Screw and Pinch Clamps Effectively clamp off hoses and control the flow of solutions! The Mohr’s Pinchcock Clamp easily fits over standard size tubing. The screw-form Hoffman clamp allows added control by a screw type adjustment which allows more or less air or liquid through.

7-G41 Mohr’s Pinchcock Clamp, 16mm O.D Opening Capacity Mohr’s Pinchcock Clamp, 16mm O.D Opening Capacity

Brass Hoffman Clamp, 16mm O.D Opening Capacity

Brass Hoffman Clamp, 19mm O.D Opening Capacity

• test tube clamps · 7-G70 · 7-G13

G35 · 7-G73

· 7-G12

· 7-G64

Stoddard Type Test Tube Clamp

Stoddard Type Test Tube Clamp

Test tube clamps hold fast to test tubes for safe handling. The variety of styles allow for choices in deciding which will be best for each application. The Stoddard type is made from heavy gauge nickelplated steel wire.

Test tube clamps hold fast to test tubes for safe handling. The variety of styles allow for choices in deciding which will be best for each application. The Stoddard type is made from of brass.

60

labware

7-G12

7-G64

Test Tube Clamp Stoddard Type 5”

Test Tube Clamp Stoddard Type 5”

Test Tube Clamp

Wooden Test Tube Clamp

Test tube clamps hold fast to test tubes for safe handling. The variety of styles allow for choices in deciding which will be best for each application. Made from heavy gauge nickel-plated steel wire, this clamp comes with finger grips.

Test tube clamps hold fast to test tubes for safe handling. The variety of styles allow for choices in deciding which will best suit each application. The wooden type has an appearance much like a clothes pin.

7-G13

7-G70

Test Tube Clamp w/ Finger Grips 5”

Test Tube Clamp Wooden 7”

Semi Micro Test Tube Clamp

Test Tube Clamp w/ Finger Grip

Test tube clamps hold fast to test tubes for safe handling. The variety of styles allow for choices in deciding which will be best for each application. Made from heavy gauge nickel-plated steel wire, this clamp is useful for holding the smallest test tubes.

Test tube clamps hold fast to test tubes for safe handling. The variety of styles allow for choices in deciding which will be best for each application. It is made from brass wire and has a convenient finger grip.

7-G35

7-G73

Test Tube Clamp Semi Micro Grips

Test Tube Clamp w/ Finger Grip 5”

Pendulum Clamp Perfect for use on support rods to hang weights and pendulums!

Each unit has three screw clamps for holding one to three strings 2” apart. The clamp will fit into rods up to 1/2” in diameter. (11” x 1.5” x 1.5”; .5lb) 7-1600-7 Pendulum Clamp

Clay Triangles Made for heating crucibles, these clay triangles are made with galvanized iron wires to help prevent premature rusting. They are available in several lengths.

G45

Support Ring and Clamp The strong cast-iron support ring resists breakage and is acid resistant making it a must have for any laboratory. The thumbscrew in the clamp locks the ring tightly to a support stand.

7-G45

Support Ring & Clamp 2” O.D.

Support Ring & Clamp 3” O.D.

Support Ring & Clamp 4” O.D.

Support Ring & Clamp 5” O.D.

Support Ring & Clamp 6” O.D.

7-2019

Clay Triangle, 1 1/2” Length

Clay Triangle, 2” Length

Extension Support rings Extension support rings allow more space when doing experiments that require room. They are made of strong, heat-resistant cast steel with a tough zinc plating to protect the rings and combat rusting.

· 7-2006-5

· 7-2006-1

7-G110

2” Diameter Ring, 10.5” L

3” Diameter Ring, 11” L

4” Diameter Ring, 11.75” L

• condensers

“T” CONNECTING TUBE Used for connecting hoses, the tubes have constricted ends allowing for a secure hold between the hose and the tube. Available in several sizes.

· 7-302-13

Liebig Condenser

“T” Connecting Tube 1/2” (12mm)

Made from heat resistant borosilicate glass, this condenser is designed for efficiency and high-speed condensing. The Leibig condenser has a long tube. The inner tube is sealed to the large watercooling jacket. An inlet and outlet tube are sealed to opposite sides of the jacket.

“T” Connecting Tube 5/16” (8mm)

7-302-9 Liebig Condenser, 200mm

7-2006-1 “T” Connecting Tube 1/4” (6mm) “T” Connecting Tube 3/8” (9.5mm)

“Y” Connecting Tube Used for connecting hoses, the tubes have constricted ends allowing for a secure hold between the hose and the tube. Available in several sizes.

7-2006-5 “Y” Connecting Tube 1/4” (6mm) “Y” Connecting Tube 5/16” (8mm)

Liebig Condenser, 300mm

Graham condenser Made from heat resistant borosilicate glass, this condenser is designed for efficiency and high-speed condensing. The Graham condenser has a coil-form inner tube, which increases the surface area.

An inlet and outlet tube are sealed to opposite sides of the jacket.

7-302-13 Graham Condenser, 300mm

labware 61

• Cork borers

· 7-200-002 · 7-000-101

· 7-G26

cork borers set/6

DesicCators w/ Porcelain Plate

The set of 6 borers ranges in size from 5-13mm. It is made of nickel plated-brass with individual handles and a rod for cleaning.

Desiccators allow one to store equipment in a low-humidity atmosphere. The heavy glass desiccators are made from quality annealed glass for durability. It includes a glazed porcelain sample plate with a 4 to 5cm center hole and multiple perimeter holes that is held over the desiccant. For an airtight seal, apply grease to the internal edges of the flange, press the lid on and rotate at least 360 degrees.

7-G26 Cork Borers Set/6

cork borers set/9 This is a set of 9 high quality cork borers made of solid brass. The set ranges in size from 4.5mm to 14mm. The size is stamped on each piece. The set allows you to bore holes in corks to fit them with the appropriate glass tubing or thermometer.

7-000-101 Cork Borers Set/9

7-200-001 Desiccator w/ Porcelain Plate, 200mm I.D. Desiccator w/ Porcelain Plate, 250mm I.D.

Deflagration Spoon Used in experiments which require students to burn phosphorous, sulfur, or other substances, the stainless steel deflagrating spoon is essential. The handle is positioned at an angle to keep the heat source away from the hand. It is 18”L with a 3/4” diameter bowl and 1/4” depth.

7-329

Deflagration Spoon, Stainless Steel

· 7-400-2

AGAR Agar is a growth medium used to culture microorganisms in laboratory situations.

7-CH001 Agar Powder, 3 Grams Agar Powder, 10 Grams

· 7-700

Distilling Apparatus No two liquids have exactly the same boiling point, therefore, it is possible to separate any mixture of two liquids by raising the temperature of the mixture to a point where one of the liquids will boil but the other remains liquid! The comprehensive instruction manual, which comes with the Student Distilling Apparatus, discusses how this process is applied in various industries, such as the oil industry.

Contains the following materials: 300mm Leibig Condenser, 50mm diameter Kjeldahl ball, 500ml Boiling flask, Cast Iron Base with support rod, clamp, tripod, Wire gauze, and 500ml Erlenmeyer flask. 24” x 6-1/4” x 7-3/4”; 8lbs 7-400-2 Distilling Apparatus Kjeldahl Bulb Only Kjeldahl Bulb w/ Stoppers

Spot Plates The uses of spot plates are many in any standard lab. Often used with wide range paper, the individual spots can hold solutions for testing pH. They are a staple for every lab.

7-1875

Polystyrene, 12 depressions; DZ

62

labware

Porcelain, 6 Depressions; ea Porcelain, 12 Depressions; ea

Gas Generating Bottles The bottle is useful in generating a gas such as hydrogen. Includes a bottle, two-hole rubber stopper, thistle tube, and a 90 degree angled bent glass tube.

7-700

Gas Generating Bottle 250 ml

Gas Generating Bottle 500 ml

• laboratory glassware

Properties of BOMEX Glass The Bomex brand glass is produced in a highly automated facility located in Beijing, China. The glass code is BJTY, which is a borosilicate glass type 3.3 as specified by ISO 3585. The Bomex glass products also meet the German ASTM Standards. The glass’ primary attributes are its maximum chemical resistance, minimal thermal expansion, and high resistance to thermal shock. The Bomex glass is highly resistant to permeation by acids, salt solutions, organic substances, and halogens, and it is relatively resistant to alkaline solutions. We supply “Bomex” brand, but at times we may have to substitute nonbranded glassware. Delivery times are 8-12 weeks if not in stock for all of our glassware.

Property Linear Coefficient of Expansion 20 to 300 degrees C, cm/cm Cx10-7: 32.0 ≠ 1.5 Annealing Point – degrees C.: 560 + 10 Softening Point – degrees C.: 820 + 10

· 7-440600

Annealed Density – g/cm:

2.23 + 0.02

Chemical Durability Titration Equivalent Of 0.01 M HC1/1g of glass, max, ml: 0.1

Glass Code: BJTY Type:

Approximate Weight %

Borosilicate

Sio2: 81

Color: Clear Principal Use: · 7-861LG

LG

General

Major Constituents:

LG

Al2O3:

2

B2O3:

13

Na2O: 4

CYLINDERS, DOUBLE SCALE The double metric scale cylinder has a round base and is made by Bomex which is a highly respected lab brand.

7-861LG Double Cylinder, 10ml Capacity, 135mm Approx. Ht Double Cylinder, 25ml Capacity, 140mm Approx. Ht

Cylinders, Single Scale

Double Cylinder, 50ml Capacity, 190mm Approx. Ht

The single metric scale cylinder has a round base and is made by Bomex which is a highly respected lab brand.

Double Cylinder, 100ml Capacity, 255mm Approx. Ht

7-711LG Single Cylinder, 10ml Capacity, 135mm Approx. Ht

Double Cylinder, 500ml Capacity, 375mm Approx. Ht

Single Cylinder, 25ml Capacity, 140mm Approx. Ht Single Cylinder, 50ml Capacity, 190mm Approx. Ht Single Cylinder, 100ml Capacity, 255mm Approx. Ht Single Cylinder, 250ml Capacity, 330mm Approx. Ht Single Cylinder, 500ml Capacity, 375mm Approx. Ht Single Cylinder, 1000ml Capacity, 460mm Approx. Ht

Cylinders (Two-Part)

Double Cylinder, 250ml Capacity, 330mm Approx. Ht

Double Cylinder, 1000ml Capacity, 460mm Approx. Ht

Beakers - Griffin, Bomex This is a Bomex Brand Griffin Beaker made of Borosilicate glass.

The graduated, low form beakers come in a wide selection of sizes and are a must for classroom lab setups.

7-440050

Griffin Beaker, 50ml Capacity

7-440100

Griffin Beaker, 100ml Capacity Griffin Beaker, 150ml Capacity

7-440250

Griffin Beaker, 250ml Capacity

Griffin Beaker, 400ml Capacity

7-741LG Two-Part Cylinder, 10ml Capacity, 132mm Approx. Ht

7-440600

Griffin Beaker, 600ml Capacity

Two-Part Cylinder, 25ml Capacity, 135mm Approx. Ht

Griffin Beaker, 800ml Capacity

Two-Part Cylinder, 50ml Capacity, 185mm Approx. Ht

7-441000

Griffin Beaker, 1000ml Capacity

Griffin Beaker, 2000ml Capacity

Two-Part Cylinder, 100ml Capacity, 248mm Approx. Ht

Beaker, 4000ml Capacity

labware

The two-part cylinder is supplied with a removable stand for added stability. It is made from Borosilicate glass and has a bumper guard to help guard against breakage.

63

7-550050

7-880250

Flasks - Erlenmeyer, Bomex The Bomex Brand Erlenmeyer flasks have a narrow mouth, tooled top finish, metric capacity scale, are thick walled and accommodate a variety of stopper sizes and volumes depending on the flask chosen.

7-550050 Erlenmeyer Flask, 50ml Capacity, #2 Stopper Size

Erlenmeyer Flask, 100ml Capacity, #3 Stopper Size · 7-396ps - 7-396eps

Erlenmeyer Flask, 125ml Capacity, #4 Stopper Size Erlenmeyer Flask, 250ml Capacity, #6 Stopper Size Erlenmeyer Flask, 500ml Capacity, #6 Stopper Size Erlenmeyer Flask, 1000ml Capacity, #9 Stopper Size

Erlenmeyer Flask, 2000ml Capacity, #9 Stopper Size

Flasks - Filtering, Bomex The Bomex Brand filtering flasks have a narrow mouth, tooled top finish, and accommodate a variety of stopper sizes and volumes depending on the flask chosen. A filtering flask has an arm to which allows a vacuum to be attached.

7-880250 Filtering Flask, 250ml Capacity, #7 Stopper Size Filtering Flask, 500ml Capacity, #8 Stopper Size Filtering Flask, 1000ml Capacity, #10 Stopper Size 7-396ALG

Flasks (Volumetric, w/ Fitted Stopper) The volumetric flasks are fitted with a ground glass stopper and are accurately calibrated for reliable measuring of liquids and solutions.

The neck has a single ring graduation mark. Noted on the flask is the flask’s capacity. The glass is clear. Class A. 7-396LG Volumetric Flask, 25ml Capacity

Tooled Boiling Flask, 250ml Capacity, #6 Stopper Size

Volumetric Flask, 100ml Capacity

Volumetric Flask, 500ml Capacity Volumetric Flask, 1000ml Capacity

Flasks (Volumetric, Bomex) The Bomex Brand volumetric flasks are fitted with a ground plastic stopper and are accurately calibrated for reliable measuring of liquids and solutions. The neck has a single ring graduation mark.

Noted on the flask is the flask’s capacity. Class A.

64

labware

7-900-250

Volumetric Flask, 250ml Capacity

Volumetric Flask, 500ml Capacity Volumetric Flask, 1000ml Capacity

The Bomex Brand tooled boiling flasks have a round bottom and accommodate a variety of stopper sizes and volumes depending on the flask chosen.

7-660100 Tooled Boiling Flask, 100ml Capacity, #3 Stopper Size

Volumetric Flask, 50ml Capacity

Volumetric Flask, 250ml Capacity

Flasks (Boiling, Bomex, Round Bottom)

Tooled Boiling Flask, 500ml Capacity, #6 Stopper Size Tooled Boiling Flask, 1000ml Capacity, #8 Stopper Size

Flasks (Boiling, Bomex, Flat Bottom) The Bomex Brand boiling flasks have a flat bottom and accommodate a variety of stopper sizes and volumes depending on the flask chosen.

7-770050 Bomex Boiling Flask, 50ml Capacity, #2 Stopper Size Bomex Boiling Flask, 100ml Capacity, #3 Stopper Size Bomex Boiling Flask, 250ml Capacity, #6 Stopper Size Bomex Boiling Flask, 500ml Capacity, #6 Stopper Size Bomex Boiling Flask, 1000ml Capacity, #8 Stopper Size

1 2

1. Safety Pipette Filler The red rubber safety pipette filler is a bulb-type filler. It has three valves which control the air release, liquid intake, and the dispensing of liquid through either a volumetric or Mohr pipette. The 3 valves are identified on the unit.

路 7-5010

7-1370

Safety Pipette Filler

2. Culture Tube Used in classrooms for growing cultures and doing other types of lab experiments, these tubes are made of durable plastic. Unmarked; hold approx. 10 ml of liquid; 15 X 100mm, Pk/250 7-901-6 Culture Tube 路 7-330LGC

路 7-6100

PIPETTES (plastic, GRADUATED) Low-density polyethylene and disposable plastic pipettes allow an inexpensive and sanitary way to measure liquids.

路 7-421LG

7-5010 3.0ml Capacity w/ 0.50ml Graduations, 500/pk

Funnels (Short Stemmed)

The short stemmed funnels come in a variety of sizes and are made of Borosilicate glass.

Pipettes (measuring (Mohr))

7-421LG Funnel, 40mm

Calibrated to deliver. Measuring/Graduated pipettes, which are often referred to as Mohr pipettes, are used to measure the volume of liquids. They have a number of marked lines to aid the user in measuring. These glass pipettes are graduated in white from the tip and have a color coded band at the top for easy size identification.

Funnel, 50mm Funnel, 75mm Funnel, 90mm Funnel, 120mm

Funnels (Separatory, Conical, BOMEX) A separatory funnel is most often used in laboratories to distinguish the densities between of 2 different liquids. These are conical shaped, made of Bomex Brand glass, and come with a ground glass stopper and stopcock.

7-6100 Measuring Pipette, 0.1ml Capacity Measuring Pipette, 2ml Capacity Measuring Pipette, 5ml Capacity Measuring Pipette, 10ml Capacity Measuring Pipette, 15ml Capacity

7-990100 Separatory Funnels, 100ml Capacity

Measuring Pipette, 20ml Capacity

Separatory Funnels, 250ml Capacity

Measuring Pipette, 50ml Capacity

Separatory Funnels, 500ml Capacity Separatory Funnels, 1000ml Capacity

Funnels (Separatory, Conical, PTFE Stopcocks)

Test Tubes The test tube is made of borosilicate glass with a rounded bottom, flared top lip, and appropriate wall thickness.

7-330LGC Test Tubes, 10 O.D. x 75mm L., Stopper Size: #000, 72/pk

A separatory funnel is most often used in laboratories to distinguish the densities between of 2 different liquids. These are conical shaped, made of Bomex Brand glass, come with a ground glass stopper, and a PTFE stopcock which never needs greasing.

Test Tubes, 12 O.D. x 100mm L., Stopper Size: #000, 72/pk

7-850050 Separatory Funnel (w/ PTFE Stopcocks), 50ml Capacity

Test Tubes, 16 O.D. x 150mm L., Stopper Size #00, 72/pk

Test Tubes, 13 O.D. x 100mm L., Stopper Size #000, 72/pk Test Tubes, 15 O.D. x 125mm L., Stopper Size #00, 72/pk

Separatory Funnel (w/ PTFE Stopcocks), 100ml Capacity

Test Tubes, 18 O.D. x 150mm L., Stopper Size #1, 72/pk Test Tubes, 20 O.D. x 150mm L., Stopper Size #2, 72/pk Test Tubes, 25 O.D. x 150mm L., Stopper Size: #4, 72/pk

Separatory Funnel (w/ PTFE Stopcocks), 1000ml Capacity

Test Tubes, 25 O.D. x 200mm L., Stopper Size: #4, 48/pk

labware

Separatory Funnel (w/ PTFE Stopcocks), 250ml Capacity Separatory Funnel (w/ PTFE Stopcocks), 500ml Capacity

65

• laboratory kits

· 7-2000-36

· 7-2000-37

Advanced Glassware Kit

· 7-2000-38

Labware Kit Contains all the basic professional borosilicate labware and equipment for conducting science experiments. The kit contains: ·“101 Great Science Experiments” Text (250 pgs.) ·1 Rubberized lab apron ·1 Beaker, 100ml-Bomex Brand ·1 Beaker, 250ml-Bomex Brand ·1 Beaker, 400ml-Bomex Brand ·1 Porcelain evaporating dish ·1 Erlenmeyer flask, 250ml-Bomex Brand ·1 Thistle tube, plastic ·1 Safety goggles ·1 Graduated cylinder, 50ml, Bomex brand ·1 Filtering paper ·12 Medicine droppers ·1 Spatula, stainless steel, 22cm length ·1 Sponge 1x3-3/8”, 3-Rubber stoppers, #6, solid ·6 Test tubes 16x150mm ·1 Test tube rack ·1 Test tube brush ·1 Test tube clamp, brass ·1 Pair of crucible tongs, 1-Pipestem triangle ·1 Burner tripod, cast iron ·1 Wire gauze square, 4x4” ·1 Crucible, porcelain HF ·1 Plastic cylinder 100 ml capacity 7-2000-38

95 pieces are included in the advanced Glassware Kit. Includes: ·1 50ml Griffin beaker ·2 250ml Griffin beakers ·1 600ml Griffin beaker ·1 50ml Erlenmeyer flask ·2 250ml Erlenmeyer flasks ·1 500ml Erlenmeyer flask ·6 medicine droppers ·6 6” stir rods ·1 10ml cylinder ·1 100ml cylinder ·1 serological pipette ·12 16 x1 50mm test tubes ·1 75mm x 75mm short stem funnel ·1 25ml burette with stopcock ·1 6” dropping pipette ·6 Barnes bottles with droppers ·2 8-oz bottles with droppers assemblies ·2 60ml dropping bottles with ground glass pipettes ·1 100mm drying tube ·1 300mm condenser ·1 250ml Bomex boiling flask ·1 60ml porcelain mortar and pestle ·1 5ml volumetric pipette ·1 6 x 300mm thistle tube ·1 4” watch glass ·12 5m 12” long flint glass tubes ·12 6mm 12” flint glass tubes ·12 7mm 12” flint glass tubes ·1 250ml Bomex filtering flask ·1 250ml volumetric flask ·1 100ml Bomex volumetric boiling flask ·1 75 x75 mm short stem funnel.

7-2000-37 Advanced Glassware Kit

Labware Kit

66

labware

Glassware Kit If you don’t want to waste time searching for all the essential glassware pieces you need, here is a 36 piece selection of borosilicate laboratory glassware. Includes: ·1 50ml Griffin beaker ·2 250ml Griffin beakers ·1 600ml Griffin beaker ·1 50ml Erlenmeyer flask ·2 250ml Erlenmeyer flasks ·1 500ml Erlenmeyer flask ·6 medicine droppers ·6 6” stir rods ·1 10ml cylinder ·1 100ml cylinder ·1 serological pipette ·12 16x150mm test tubes ·1 75mmx75mm short stem funnel.

7-2000-36 Glassware Kit

· 7-9001

· 7-9003

Laboratory Scissor Jacks Designed for supporting glassware and other lab items at a stable and precise height, the scissor jacks can extend to a maximum height of 10”.

7-9001

Laboratory Scissor Jacks Black Enamel, Plate Size 6” x 6” Laboratory Scissor Jacks Black Enamel, Plate Size 8” x 8”

7-9003 Laboratory Scissor Jacks Stainless Steel, Plate Size 6”x6”

Laboratory Scissor Jacks Stainless Steel, Plate Size 8”x8”

Exploralab Kit

Advanced Labware Kit

Designed for an advanced lab program, this is an extremely comprehensive kit. Kit includes: ·1 flat-bottom Bomex brand 500ml glass boiling flask ·1 Bomex brand glass 500ml Erlenmeyer flask ·1 flat-bottom Bomex brand 250ml boiling flask ·1 400ml Bomex brand Beaker ·1 150ml Bomex brand Beaker ·1 pair of safety goggles ·1 wooden 8 hole test tube rack ·1 burette clamp ·1 4 x 6” support stand ·1 16x150mm test tube ·1 100mm watch glass ·1 5x5” wire gauze ·2 glass medicine droppers ·1 30cc measuring cups ·1 test tube clamp ·3 6” glass stir rods ·1 180mm stainless steel spatula ·1 50ml Bomex brand singe scale cylinder ·1 package of 500 wood splints ·6 solid rubber size #0 stoppers ·3 1 hole size #0 rubber stoppers ·2 2 hole size #0 rubber stoppers ·2 size #6 solid rubber stoppers ·2 size 6 -1 hole stopper ·2 size #6 2 hole stopper ·1 3” support ring and clamp ·1 rubberized cloth apron ·4 pairs of latex gloves

This kit features a comprehensive manual titled “Chemistry the Easy Way”. The kit contains all the basic materials as our borosilicate Labware Kit #7-2000-38, but has been expanded to also include: ·1 Flat-bottom glass boiling flask, 500ml, Bomex brand, ·1 Glass Erlenmeyer flask, 500ml, Bomex brand ·1 Flat bottom boiling flask, 250ml, Bomex brand ·1 Beaker, 400ml, Bomex ·1 Beaker, 150ml, Bomex ·1 Pair of safety goggles ·1 Wooden test tube rack ·1 Burette clamp ·1 Support stand, 4”x6” ·1 Test tube, 16x150mm ·1 Watch glass, 100mm ·2 Wire gauze, 5x5” ·2 Glass medicine droppers ·4 Measuring cups 30cc ·1 Test tube clamp ·3 Glass stir rods, 6” ·1 Stainless steel spatula, 180mm ·1 Single scale cylinder, 50ml Bomex brand ·1 Wood splints, pk/500 ·6 Rubber stoppers, size #0, solid ·3 Rubber stoppers, size #0 ·1-hole ·2 Rubber stoppers, size #0, 2-hole ·2 Rubber stoppers, size #6, solid ·2 Rubber stoppers, size #6, solid ·2 Rubber stoppers, size #6, solid ·1 Support ring and clamp, 3” ·1 Rubberized cloth apron ·4 Pairs of latex gloves

7-2000-48 Exploralab Kit

7-2000-39 Advanced Glassware Kit

Test Tube Racks Test tube racks are great space-savers that can also act as an extra pair of hands during experiments! Whether wooden or plastic, racks hold varying numbers of test tubes. · 7-2202

· 7-1408

7-1406

· 7-1409

Wooden Test Tube Rack, 13 tube, 2 tier, 7x20mm, 6x26mm

Wooden Test Tube Rack, 12 tube, 2 rows

Wooden Test Tube Rack w/ Drying Pins, 8 Holes x 22mm

Wooden Test Tube Rack w/ Drying Pins, 12 holes x 22mm

Plastic Test Tube Rack, 8 Holes x 16mm

Plastic Test Tube Rack, 9 Holes x 18mm, & 3 Holes 20mm

labware

· 7-2204

Wooden Test Tube Rack, 6 tube, 1 row, 24mm D

67

• measurement tools

· 7-g34

Petri dishes - plastic Petri Dishes are essential lab materials used for growing and studying cultures. Not sterile. · 7-g84

7-1500-7 Plastic Petri Dishes, 35mm D., pk/20 Plastic Petri Dishes, 50mm D., pk/20

· 7-g83

Plastic Petri Dishes, 70mm D., pk/20 7-1500-10 Plastic Petri Dishes, 90mm D., pk/20

Vernier Caliper The Vernier Caliper’s roller adjustment and locking screw provides fast, easy, and precise measuring. It is made of steel with a double scales which is calibrated in both English and metric scales. 120mm x 0.1mm and 5” x 0.25” measurements; 1” x 3” x8”; .186lb 7-G34

Petri dishes - Glass

Vernier Caliper

Petri Dishes are essential lab materials used for growing and studying cultures. Not sterile.

Micrometer This traditional English caliper is used for precise measurements.

The body is constructed of brass and features a stainless steel screw adjustment. 25 x 1mm pitch 7-G84

7-1500-1 Flint Glass Petri Dish, 60x65x15mm

Flint Glass Petri Dish, 75x82x15mm Flint Glass Petri Dish, 90x98x18mm

Micrometer

Precision Measurement Set The 4 piece high quality measurement set is supplied in a highimpact, reusable, plastic storage container. Includes: 1 micrometer 0-25 x .01mm; 1 Vernier Caliper 150 x .05mm; 1 90 degree knife edge square and 1 150mm steel ruler; 12” x 1-1/2” x 4”; 1.65lb; 7-G83

· 7-1500-1

Flint Glass Petri Dish, 100x107x20mm Flint Glass Petri Dish, 120x130x25mm

Flint Glass Petri Dish, 150x160x30mm

Precision Measurement Set

Hand Tally

68

labware

This hand tally is ideal for various lab applications including taking surveys, counting total drops of liquid, blood samples, and performing laboratory inventory.

7-1390

Digital Stopwatch

Hand Tally

This electronic stopwatch comes with battery and carrying cord. Featured on this stopwatch are hour, minute, second, calendar display, 24 hour stopwatch, hourly chime, alarm, split time and total time, 12 or 24 hour mode option, and 1/100 second chronograph.

7-1397 Digital Stopwatch

• measurement tools

· 7-400-050

· 7-700-250

· 7-300-250

· 7-200-010

Flasks - ERLENMEYER

Measuring Jugs

Made of translucent polypropylene, this cone shaped flask comes with a secure, coarse threaded cap. The flask is autoclavable and leak-proof when the screw cap is tightly closed.

The measuring jugs are made of molded polypropylene with raised graduations and a sturdy reinforced handle. They are translucent and have good chemical resistance.

7-300-250 Erlenmeyer Flask, 250ml Capacity

7-700-250 Measuring Jugs, 250ml Capacity, pk/12

Erlenmeyer Flask, 500ml Capacity

Measuring Jugs, 500ml Capacity, pk/12 Measuring Jugs, 1000ml Capacity, pk/6

Cylinders - Single Scale Each cylinder is molded from tough translucent polypropylene and incorporates raised graduations for easy reading. These cylinders are autoclavable and have a broad base for stability.

Measuring Jugs, 2000ml Capacity, pk/6

Polypropylene Graduated Beakers

Cylinder, Single Scale, 25ml Capacity

These graduated beakers are molded from tough translucent, polypropylene and incorporate raised outer graduations for ease of reading. The beakers have a tapered spout, are chemical resistant, and autoclavable.

Cylinder, Single Scale, 50ml Capacity

7-100-050 Beaker, Graduated, 50ml Capacity

7-200-010 Cylinder, Single Scale, 10ml Capacity

7-200-100 Cylinder, Single Scale, 100ml Capacity

Beaker, Graduated, 100ml Capacity

Cylinder, Single Scale, 250ml Capacity

Beaker, Graduated, 250ml Capacity

Beaker, Graduated, 500ml Capacity

Cylinder, Single Scale, 1000ml Capacity Cylinder, Single Scale, 2000ml Capacity

Beaker, Graduated, 1000ml Capacity Beaker, Graduated, Set/5

Long Stem Utility Funnels Each funnel is smooth walled and molded from chemical resistant polypropylene. Long stemmed with a 60 degree cone angle and external ribs to prevent air lock.

7-400-050 Long Stem Funnel, 50mm Long Stem Funnel, 75mm Long Stem Funnel, 100mm Long Stem Funnel, 150mm

labware 69

• ph test paper

pH test paper is used to determine the acidity or alkalinity of a solution. Using pH test paper provides a quick visual indication of the degree of acidity or alkalinity present in whatever solution is being tested. This is a vital tool for classroom projects or field trips. Our test papers offer a wide variety of pH papers. They are supplied in a clear plastic vial containing 100 3mm x 12mm strips. All include color guides in vial.

-16

-17

7-3000-1 pH Test Paper, Acid Neutral Base

-1

-12

-11

-15

-13

-20

-21

7-3000-15 pH Test Paper, Neutral Litmus

pH Test Paper, Cobalt Chloride

pH Test Paper, Red Litmus, pH 6.8-8.1, Base or Alk.

pH Test Paper, Congo Red, pH 3.0 - 5.0

pH Test Paper, Blue Litmus, pH 4.3-6.8, Acid

pH Test Paper, Crystal Violet, pH 0.0 - 1.8

pH Test Paper, Phenolphthalein, pH 8.2 - 10.0

· 7 -3000-23

· 7-3000-30

Wide Range pH Wide Range pH Indicator Kit The kit provides all you need for pH projects and activities. The distinct color change for each pH reading is shown from 1 to 14.

Contains the following: 1 2 oz. bottle of wide range pH indicator solution, 2 styrene 12-well spot plate, 2 medicine droppers, 2 pH color comparison card; 1 instruction sheet.

Wide Range pH test paper is a vital tool for classroom projects and field trips. Our test papers offer a distinct pH reading in the range of 1-14. Includes a color indicator card for quick visual indication of the degree of acidity or alkalinity present. The strips are supplied in a clear plastic vial containing 100 3mm X 12mm strips.

7-3000-30 Wide Range pH, Range 1-14 Teacher Demo Strips, 1” x 9-1/2”

7-3000-33 Wide Range pH Indicator Kit, Range 1-14 Wide Range pH Color Chart, 1-14

PTC Paper

Wide Range Solution, 2 oz

The ability to taste PTC is a hereditary trait and varies with each individual. PTC paper, which is often used when discussing heredity in biology classes, is paper soaked with phenol thiocarbamide (PTC). The LD50 for PTC is 3.4mg/kg. Such a low LD50 reveals than PTC is a very hazardous substance. The solution to make the taste test paper, contains approximately 500ml of PTC per liter of water.

Through some very crude arithmetic, we calculate that each strip of PTC paper would contain approximately 0.3mg of PTC. We estimate that a student weighing about 110 lbs would have to lick (which is how the test is performed) and ingest about 500 2” x 1/4” strips of PTC paper to reach the LD50. You will have to determine if you wish to use this taste paper in your classroom. Vial of 100.

7-3000-23

Touch Paper (Smoke Paper) These 8” x 10” sheets of chemically treated white colored paper are suitable for use in igniting certain combustible materials. After initially setting fire to the edge of a touch paper and then blowing out the flame, the embers on the sheet continue to glow and smoke.

70

labware

7-3000-27

Touch Paper (Smoke Paper), 10 pieces

PTC Paper

• porcelain-ware · 7 -1302-20

The anchor-brand laboratory porcelain is made from high quality raw materials. The products are uniform and dense, which allows stable mechanical strength and little permeability. When properly used, the glazed pieces can withstand temperatures of 1050°C, while the unglazed pieces can withstand temperatures of 1350°C.

· 7-525-0

· 7-310-1

· 7-315-1

· 7-318-1

Casseroles w/ Handle, porcelain

Crucibles w/ Lid, porcelain, High Form

The porcelain casserole is made to withstand high temperatures when used for melting or drying ingredients. The handles and spout are sturdy and allow for easy manipulation of the materials being used in the lab experiments.

Crucibles are used in laboratory experiments. They come in a variety of sizes and shapes and may come with a lid. They are used with chemical compounds that may be heated to high temperatures.

7-318-1 50ml Cap. 50mm Rim Dia. x 30mm Bottom Dia. x 30mm H 70ml Cap. 66mm Rim Dia. x 40mm Bottom Dia. x39 mm H

Evaporating Dishes, porcelain 7-525-0 Evaporating Dish, 35ml, 60mm x 25mm Evaporating Dish, 50ml, 70mm x 28mm

7-310-1 Crucible w/ Lid, 10ml, 30mm x 20mm x 28mm Crucible w/ Lid, 15ml, 32mm x 20mm x 34mm Crucible w/ Lid, 30ml, 40mm x 25mm x 46mm Crucible w/ Lid, 50ml, 43mm x 28mm x 58mm Crucible w/ Lid, 100ml, 63mm x 34mm x 57mm

Crucibles Lid Only, High Form

Evaporating Dish, 60ml, 74mm x 30mm Evaporating Dish, 75ml, 82mm x 32mm Evaporating Dish, 100ml, 90mm x 35mm Evaporating Dish, 125ml, 98mm x 38mm Evaporating Dish, 150ml, 104mm x 40mm Evaporating Dish, 200ml, 110mm x 44mm Evaporating Dish, 250ml, 120mm x 45mm

Mortar and Pestle, Porcelain 7-1302-20 Mortar & Pestle, Porcelain, 80mm, 60ml Mortar & Pestle, Porcelain,100mm, 130ml Mortar & Pestle, Porcelain,130mm, 320ml Mortar & Pestle, Porcelain,160mm, 500ml

7-312-2 Crucibles Lid, for High Form 15ml Crucibles Lid, for High Form 30ml Crucibles Lid, for High Form 50ml

Crucibles w/ Lid, porcelain, Low Form Crucibles are used in laboratory experiments. They come in a variety of sizes and shapes and may come with a lid. They are used with chemical compounds that may be heated to high temperatures.

7-315-1 Crucible w/ Lid, 15ml, 43mm x 19mm x 23mm Crucible w/ Lid, 30ml, 51mm x 25mm x 30mm Crucible w/ Lid, 50ml, 59mm x 28mm x 38mm

Funnels, Buchner, porcelain 7-605-2 Funnels, Buchner, 60mm x 18mm x 100mm x 30mm Tube dia.

Funnels, Buchner, 80mm x 22mm x 130mm x 40mm Tube dia.

labware

Funnels, Buchner, 120mm x 30mm x 170mm x 60mm Tube dia.

71

72

labware

• rubber stoppers

7-EC1902-000

Stoppers, 000-solid

7-EC1903-00

Stoppers, 00-Solid

7-EC1903-00-1

Stoppers, 00-1 Hole

7-EC1903-00-2

Stoppers, 00-2 Hole

7-EC1904-0

Stoppers, 0-Solid

7-EC1904-0-1

Stoppers, 0-1 Hole

7-EC1904-0-2

Stoppers, 0-2 Hole

7-EC1905-1

Stoppers, 1-Solid

stopper sizes and measurements This chart provides an approximate gauge for the top and bottom diameter of the rubber stoppers as well as the length. Also listed are the approximate pieces per pound.

Millimeters

Pieces Per Pound

Sizes

Top

Bottom

Length

Solid

1-Hole

000

12.7

8.2

21

207

-

2-Hole

00

15

10

25

110

121

134

0

17

13

25

69

76

88

1

19

14

25

52

57

62

2

20

16

25

45

49

53

7-EC1905-1-1

Stoppers, 1-1 Hole

7-EC1905-1-2

Stoppers, 1-2 Hole

7-EC1906-2

Stoppers, 2-Solid

7-EC1906-2-1

Stoppers, 2-1 Hole

7-EC1906-2-2

Stoppers, 2-2 Hole

3

24

18

25

36

38

42

7-EC1907-3

Stoppers, 3-Solid

4

26

20

25

26

28

29

7-EC1907-3-1

Stoppers, 3-1 Hole

5

27

23

25

21

22

22

7-EC1907-3-2

Stoppers, 3-2 Hole

5-1/2

28

24

25

22

23

24

7-EC1908-4

Stoppers, 4-Solid

6

32

26

25

14

16

17

7-EC1908-4-1

Stoppers, 4-1 Hole

6-1/2

34

27

25

16

17

17

7

37

30

25

11

12

12

8

41

33

25

9

9

9

9

45

37

25

7

7

7

10

50

42

25

5

5

5

11

56

48

25

4

4

4

12

64

54

25

3

3

3

14

90

75

39

2

2

2

7-EC1908-4-2

Stoppers, 4-2 Hole

7-EC1909-5

Stoppers, 5-Solid

7-EC1909-5-1

Stoppers, 5-1 Hole

7-EC1909-5-2

Stoppers, 5-2 Hole

7-EC1910-5.5

Stoppers, 5.5- Solid

7-EC1910-5.5-1

Stoppers, 5.5-1 Hole

7-EC1910-5.5-2

Stoppers, 5.5-2 Hole

7-EC1911-6

Stoppers, 6-Solid

7-EC1911-6-1

Stoppers, 6-1 Hole

7-EC1911-6-2

Stoppers, 6-2 Hole

7-EC1915-8-2

Stoppers, 8-2 Hole

7-EC1919-12-2

Stoppers, 12-2 hole

7-EC1912-6.5

Stoppers, 6.5 Solid

7-EC1917-9

Stoppers, 9 Solid

7-EC1920-11

Stoppers, 11 Solid

7-EC1912-6.5-1

Stoppers, 6.5-1 Hole

7-EC1917-9-1

Stoppers, 9-1 Hole

7-EC1920-11-1

Stoppers, 11-1 Hole

7-EC1912-6.5-2

Stoppers, 6.5-2 Hole

7-EC1917-9-2

Stoppers, 9-2 Hole

7-EC1920-11-2

Stoppers, 11-2 Hole

7-EC1913-7

Stoppers, 7-Solid

7-EC1918-10

Stoppers, 10 Solid

7-EC1920-14

Stoppers, 14 Solid

7-EC1913-7-1

Stoppers, 7-1 Hole

7-EC1918-10-1

Stoppers, 10-1 hole

7-EC1913-7-2

Stoppers, 7-2 Hole

7-EC1918-10-2

Stoppers, 10-2 Hole

7-EC1915-8

Stoppers, 8 Solid

7-EC1919-12

Stoppers, 12 Solid

7-EC1915-8-1

Stoppers, 8-1 Hole

7-EC1919-12-1

Stoppers, 12-1 hole

$5.80 Ea. *color may vary *typically blue in color

• spatulas and scoops

· 7-1836

· 7-1832

Spatulas & Scoops Spatulas and scoops have a variety of uses in a lab environment.

Most often they are a mixing tool used with plaster, wax, molding materials, etc. The preciseness of their weigh allows for accurate measurements. Available in several sizes, students can chose the one most affective for their activity.

7-1832

Plastic Scoops Scoops have a variety of uses in a lab environment. Most often they are used as a measuring tool. Available in several sizes, students can chose the one most affective for their activity.

7-1837

Disposable Scoop, 4oz, HDPE, Handle Length 4”

Disposable Scoop, 2oz, HDPE, Handle Length 4”

Stainless Steel Scoop, 16.5cm L.; 10/pk Wooden Handle For Scoop (7-1835-1), 13cm L.

Stir rods Rubber Policeman Used in chemistry experiments, rubber policemen are used to prevent scratching glass when removing crystals from a glass container.

7-1835

7-1900-6 Stir Rod, 6”

Stir Rod, 8”

Rubber Policeman, 5mm Straight Glass Rod, DZ

Stir Rod, 10” Stir Rod, 12”

• support stands

Our sturdy stands offer strong and dependable support. They are available in both cast iron and stamped steel. Both types are coated with an acid-resistant finish. The rods are nickel-plated steel and are threaded to fit the base.

Stamped Steel Support Ring stand 7-G66

Stamped Steel Support Ring Stand, Base 4”x6”, Rod 5/16”x18”

Stamped Steel Support Ring Stand, Base 5” x 8”, Rod 3/8” x 20”

Stamped Steel Support Ring Stand, Base 6” x 9”, Rod 1/2” x 24”

Stamped Steel Support Ring Stand, Base 6” x 11”, Rod 1/2” x 36”

Stamped Steel Support Ring Stand, Base 4”x6”, Rod 5/16”x18”, Two Rings, 3” & 4”

G69

Cast Iron Support Ring Stand 7-G14 Cast Iron Support Ring Stand, Base 4” x 6”, Rod 5/16 x 18” Cast Iron Support Ring Stand, Base 5” x 8”, Rod 3/8 x 20”

Cast Iron Support Ring Stand, Base 6” x 11”, Rod 1/2 x 36”

labware

Cast Iron Support Ring Stand, Base 6” x 9”, Rod 1/2 x 24”

73

• support stands and rings

· 7-G45

· 7-G110

Extension Support Ring

Support Ring and Clamp

Extension support rings allow more space when doing experiments that require room. They are made of strong, heat-resistant cast steel with a tough zinc plating to protect the rings and combat rusting.

The strong cast-iron support ring resists breakage and is acid resistant making it a must have for any laboratory. The thumbscrew in the clamp locks the ring tightly to a support stand.

7-G110 Extension Support Ring, 2” Diameter Ring

7-G45

Support Ring & Clamp 2” O.D.

Extension Support Ring, 3” Diameter Ring

Support Ring & Clamp 3” O.D.

Extension Support Ring, 4” Diameter Ring

Support Ring & Clamp 4” O.D.

Support Ring & Clamp 5” O.D.

Support Ring & Clamp 6” O.D.

· 7-G23

Support with Triangular Base The open triangular base is made of cast iron with a black enamel, acid resistant finish. The removable rod is nickelplated steel and threaded to fit the base.

7-G23 Support w/ Triangular Base, 6” Legs, Rod 1/2”x36” Support w/ Triangular Base, 5” Legs, Rod 1/2”x24”

Cast Iron Support Ring stand W/ TRIANGULAR BASE The triangular base is made of cast iron with a black enamel, acid resistant finish. The removable rod is nickel-plated steel and threaded to fit the base.7-3/4 Legs x 8” Width Across Legs, Rod 7/16”x23” 7-G55

Support “A” Base

· 7-G55

• thermometers

-300mm in Length -Single Scale7-6204 show degrees in Celsius Double Scale show degrees in Celsius and Fahrenheit -No-roll sleeve applied to all thermometers -Packing is either a clear triangular tube or “value packed” in an opaque tube.

Total immersion thermometers are designed with scales which indicate actual temperature when the bulb and the entire liquid column are exposed to the temperature being measured.

In practice, a short length of liquid column (usually one-half inch) is permitted to extend above the surface of the liquid being measured to allow reading of the thermometer.

74

labware

Partial immersion thermometers (or noted as 76mm immersion) should be immersed to the line for correct temperature indication. This line is usually indicated on the thermometer approximately 3 inches from the “bulb” end.

Burner Tripods The cast iron support ring with black enamel, acid resistant finish, detachable nickel-plated steel legs provide stable support for laboratory glassware. The legs are angled outward to provide the best stability.

7-G51

Burner Tripods, 4” Ring; 9” Legs

• flint glass tubing

physical properties of flint tubing Softening Point: 705˚ Centigrade Annealing Point: 522˚ Centigrade Solbility, ml:

7.8ml

Lead Oxide:

<0.01%

Arsenic and Antimony: <0.02% Coefficient of Expansion x 10: 94.1

tubing pieces per pound Flint Glass Tubing Flint glass is also known as soda lime glass. It has a lower melting point, chemical resistance, and expansion rate than does borosilicate glass. The tubing listed is known as apparatus weight tubing, which is a reference to its wall thickness. Please see the charts listed below.

1Ib.

1Ib.

1Ib.

1Ib.

5Ib.

1Ib.

5Ib.

12”

24”

30”

48”

48”

60”

60”

5mm

45

23

18

11

55

9

45

6mm

36

18

14

9

45

7

35

7-2410 Flint Glass Tubing, 5mm OD x 12” Length, 1lb

7mm

29

15

12

7

35

6

30

Flint Glass Tubing, 6mm OD X 12” Length, 1lb

8mm

24

12

10

6

30

4.8

24

Flint Glass Tubing, 7mm OD X 12” Length, 1lb

9mm

20

10

8

5

25

4

20

Flint Glass Tubing, 8mm OD X 12”Length, 1lb

12mm

15

8

6

4

19

3

15

14mm

13

7

5

3

15

2.6

13

Flint Glass Tubing, 5mm OD x 24” Length, 1lb Flint Glass Tubing, 5mm OD x 48” Length, 5lbs Flint Glass Tubing, 6mm OD x 24” Length, 1lb Flint Glass Tubing, 6mm OD x 48” Length, 5lbs

16mm

9.4

5

4

2

10

1.8

9

18mm

8.3

4

3

2

10

1.6

8

20mm

7

4

3

2

10

1.4

7

Flint Glass Tubing, 7mm OD x 24” Length, 1lb Flint Glass Tubing, 7mm OD x 48” Length, 5lbs Flint Glass Tubing, 8mm OD x 24” Length, 1lb Flint Glass Tubing, 8mm OD x 48” Length, 5lbs

Apparatus Weight Flint Tubing Wall Thickness

Flint Glass Tubing, 10mm OD x 24” Length, 1lb Flint Glass Tubing, 10mm OD x 48” Length, 5lbs

Stock Number

OD Dia. mm

Wall mm

7-2410, 7-2411-01, 7-2411-02, 7-2411-03

5mm ± .20

1.00 ± .05

7-2410-01, 7-2412-01, 7-2412-02, 7-2412-03

6mm ± .20

1.05 ± .05

7-2410-02, 7-2413-01, 7-2413-02, 7-2413-03

7mm ± .20

1.10 ± .05

ASSORTED FLINT TUBING

7-2410-03, 7-2414-01, 7-2414-02, 7-2414-03

8mm ± .20

1.15 ± .05

The most commonly used diameters of flint tubing are included in this assortment that totals 2.5 pounds. All pieces are 24” in length.

The assortment includes: 12 pcs. of 15mm OD, 11 pcs. of 6mm OD, 4 pcs. of 7mm OD, 3 pcs. of 8mm OD, 3pcs. of 10mm OD and 3 pcs. of 12mm OD. Consists of a selection of popular tubing sizes in 24” lengths. Packaged in a cardboard box. Sizes 5mm-15 pcs, 6mm14 pcs., 7mm-5 pcs., 8mm-4 pcs., 10mm-4pcs., and 12mm-4pcs.

2.90lbs.

7-2410-04, 7-2415-01, 7-2415-02, 7-2415-03

10mm ± .20

1.20 ± .05

7-2420-01, 7-2420-02, 7-2420-03

20mm ± .375

1.40 ± .05

7-14706 Assorted Flint Tubing

7- 2400-28-1 5mm, 24” - 1lb Pack

Flint Glass Tubing, 12mm OD x 24” Length, 1Ib Flint Glass Tubing Assorted Pack

FLINT GLASS ROD

Tubing Cutter Cuts glass tubing up to 24mm diameter. Made from nickel-plated steel.

7-2400 Glass Tubing Cutter – Single Blade Glass Cutter Blade Only

labware 75

Vacuum Plate 9”

Watch glasses

The 1/2” thick vacuum plate was designed to fit any jar 8-1/2” O.D. or smaller. A rubber gasket is also included. 9” diameter.

Watch glass has multiple uses in a laboratory. It may be applied as a jar cover in condensation experiments, a protective lid to prevent contamination by dust particles stored in a container, and as an evaporative surface when crystallization or precipitation are being observed. When using Soda-lime watch glass is it important to keep it from direct contact with a heat source.

7-203-4 Vacuum Plate, 9”

Vacuum Plate 10.5” Designed specifically to fit any jar 10 inches or smaller. (Not Shown).

7-203-7 Vacuum Plate, 10.5”

7-000-106 Watch Glass, 50mm Fired Edges Watch Glass, 65mm Fired Edges Watch Glass,mm Fired Edges, 75mm Watch Glass,mm Fired Edges, 90mm Watch Glass,mm Fired Edges, 100mm Watch Glass,mm Fired Edges, 115mm Watch Glass,mm Fired Edges, 125mm

7-4000-1

Watch Glass,mm Fired Edges, 150mm Watch Glass,mm Fired Edges, 200mm Watch Glass, Soda-Lime; Polished Edges, 45mm Watch Glass, Soda-Lime; Polished Edges, 60mm Watch Glass, Soda-Lime; Polished Edges, 70mm Watch Glass, Soda-Lime, Polished Edges, 80mm Watch Glass, Soda-Lime; Polished Edges, 90mm 7-4000-5

Watch Glass, Soda-Lime; Polished Edges, 100mm

Wire Gauze Like clay triangles are used with crucibles, wire gauze is often used with bunsen burners to aid in the distribution of heat from the flame.

The ceramic center helps further keep the heat concentration from directly coming in contact with the container being used. No asbestos.

7-4000-1 Wire Gauze w/ Ceramic Center, 4” x 4”

76

labware

Wire Gauze w/ Ceramic Center, 5” x 5” Wire Gauze w/ Ceramic Center, 6” x 6”

Wood Splints

Wire Gauze w/out Ceramic Center, 4” x 4” Wire Gauze w/out Ceramic Center, 5” x 5”

Helpful for demonstrating oxygen’s presence and support of combustion. Also great as applicators and markers in planting. Thin and economical. Size 3/16” x 5 1/2 x .040 Thick

Wire Gauze w/out Ceramic Center, 6” x 6”

7-2306 Wood Splints Case Quantity, 50 pkgs. of 500 Wood Splints, pack of 500