Innovating Science® The voltaic cell is an electrochemical cell that produces electrical energy through a chemical reaction, specifically an oxidation-reduction reaction. In this activity, students will set up electrochemical cells, with each group using a different combination of materials for the anode and the cathode of the cell. Students will also compare two different styles of cell, one using a salt bridge and one using a semi-permeable membrane. After determining the voltage output of their cells and comparing their values to the rest of the class, students will be challenged to design an electrochemical cell that can run a small motor. Kit contains enough materials for 15 groups. Teacher’s manual and student study guide copymasters are included. Kit Includes: 1L Copper Chloride 1.0M 1L Magnesium Chloride 1.0M 1L Iron Chloride 1.0M 1L Tin (II) Chloride 1.0M 1L Zinc Chloride 1.0M 1L Aluminum Chloride 1.0M 1L Potassium Chloride 1.0M 125 pieces Copper Metal Foil Strips 125 pieces Tin Foil Strips 125 pieces Iron Metal Strips 125 pieces Aluminum Metal Strips 125 pieces Zinc Strips 125 pieces Magnesium Metal Ribbon Strips 60 Cups, 5oz 15ft Dialysis Tubing 15 Red Connecting Wires with Alligator Clips 15 Black Connecting Wires with Alligator Clips 20 pieces Filter Paper 60 Pipettes 15 3 volt Motors DOT Info: UN3082, RQ, Environmentally hazardous substance, liquid, n.o.s., (Cupric chloride solution), 9, III, Ltd Qty UN1760, Corrosive liquids, n.o.s., (Stannous chloride, Hydrochloric acid), 8, III, Ltd Qty NA1760, Ferrous chloride solution, 8, III, Ltd Qty UN2581, Aluminum chloride solution, 8, III, Ltd Qty WARNING: This product can expose you to
chemicals including Phthalates, which is known to the State of California to cause reproductive harm. For more information go to http://www. P65Warnings.ca.gov.
IS3450 $399.00
STEM Investigations: Fingerprint Classification In this lab activity students will learn about the history of fingerprinting as a tool for identification. They then will analyze fingerprints for common characteristics and create a classification system using those characteristics. Once they have created a system, they will analyze class data using the system that is used worldwide for classification. This kit includes an optional activity where students can practice lifting a fingerprint and comparing it to a “crime scene” print. Kit contains enough materials for 15 groups. Teacher’s Guide and Student Study Guide copymasters are included. Kit includes: 15 Hand magnifiers 1 Ink pad 1 btl Fingerprinting powder 15 Fingerprinting brushes 30 Acetate sheets Fingerprint Record Sheet
DOT Info: Non-regulated WARNING: This product can expose you to chemicals including Carbon Black, which is known to the State of California to cause cancer. For more information go to www.P65Warnings.ca.gov.
IS3451 $74.10
Aldon Corporation
www.aldon-chem.com
800-724-9877
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STEM Investigations
STEM Investigations: Create Your Own Power
