#7065 en

EXPERIMENTS

# 7065

8+ 137 10 AGES AGES

PIECES PIECES

MODELS MODELS

Contents Suggestions to Parents & Product Cleaning

P1

Safety Guidelines & Caution

P2

Parts List

P3

How to Assemble

P4-6

The History of Electricity and Magnetism

P6

Electricity and Magnetism in Real Life

P7

Basic Electric Current

P8-9

7 Experiments

P10-12

Model 1 Flying Propeller

P13-15

Model 2 Sports Car

P16-18

Model 3 Optical Illusion Circuit

P19-21

Model 4 Fishing Game

P22-24

Model 5 Amusement Park Swing

P25-27

Model 6 Rescue Helicopter

P28-32

Model 7 Electric Maze Game

P33-35

Model 8 Goal Keeper

P36-39

Model 9 Light Tower

P40-43

Model 10 Ferris Wheel

P44-50

Suggestions to Parents ˙ Please read these instructions carefully begore you begin, follow the safety guidelines and keep them for reference. We recommend building the models in the order given. This will help you understand how the parts are assembled; you will then be able to invent many more models. ˙ This kit is for children at the age of 8 or above. ˙ It is designed to help chidren discover what an electric circuit is by building a variety of models and the effect between electric current and magnetism. ˙ Make sure children follow the safety guidelines and understand the possible risks involved before starting building these models. ˙ Caution! Never insert a wire-connector or any component into a household electrical socket as this can cause electrical shock and results personal injury or serious property damage. Only use the batteries recommended for this kit.

Product Cleaning ˙ Please remove the battery from the battery box before cleaning. ˙ Use a slightly damp cloth to clean the parts. ˙ Do not use detergent.

1

Safety Guidelines ˙ Loading and removing the battery should be carried out by an adult. ˙ Pay attention to the positive and negative polarity of the battery. ˙ Alkaline batteries are recommended for having sufficient power for all electromagnet experiements. ˙ Do not mix batteries of different types or new with used one. ˙ Do not short-circuit the batteries! A short-circuit can cause the wires to overheat and the batteries to explode. ˙ Remove the empty batteries from the toy and dispose them in accordance with your local regulation.

Do not dispose the battery in household trash. ˙ Always remove the battery after the experiments. Store the battery that is not easily accessible for the child.

Notice 1. All experiments should be operated thru the built models not battery holder(s) only. This package includes 2 battery holders for AA-LR6 type battery. Batteries are not included in the package.

2. Please follow the suggestion to reel the fine-wire properly. This will improve the magnetism effect of experiment.

Caution Incorrect use of batteries may cause electrical shortage, which can damage the surrounding environment and cause fire or personal injury.

Warning Warning! This product contains small magnets. Swallowed magnets can stick together across intestines causing serious infections and death. Seek immediate medical attention if magnets are swallowed or inhaled.

Warning! Not suitable for children under 8 years.

Warning! Long cord. Strangulation hazard.

Warning! Small ball. Choking hazard.

2

Parts List

3

1

2

3

4

5

6

7

8

9

10

11

12

x3

x2

x1

x4

x1

x2

x2

x1

x2

x1

x1

x1

13

14

15

16

17

18

19

20

21

22

23

24

x1

x2

x1

x1

x2

x1

x2

x2

x1

x2

x1

x2

25

26

27

28

29

30

31

32

33

34

35

36

x3

x5

x2

x2

x1

x2

x3

x4

x1

x2

x1

x1

37

38

39

40

41

42

43

44

45

46

47

48

x2

x1

x1

x1

x22

x15

x8

x1

x1

x1

x1

x1

49

50

51

52

53

54

55

56

57

58

59

60

x1

x1

x2

x1

x1

x1

x1

x1

x4

x1

x1

x1

1

AXLE CONNECTOR

21

TWO-IN-ONE CONVERTER

41

2

CAM CONNECTOR

22

BENDED ROD

42

LONG PEG

3

AXLE

23

3 HOLE ROD LATERAL CLOSED

43

SHORT BUTTON FIXER

4

AXLE FIXING

24

3 HOLE DUAL ROD

44

BASE GRID

5

OD53 PULLEY

25

5 HOLE ROD FRONT CLOSED

45

WINDING REEL

6

20T GEAR

26

5 HOLE ROD

46

IRON ROD

7

40T GEAR

27

5 HOLE DUAL ROD

47

PLASTIC SHEATH WIRE

8

60T GEAR

28

5X5 FRAME

48

SANDPAPER

9

80T GEAR

29

7 HOLE PROLATE ROD

49

ROUND MAGNET

10

WORM GEAR

30

11 HOLE ROD

50

OD106 PROPELLER

11

SHORT PEG

MOTOR AXLE

31

15 HOLE DUAL ROD

51

100mm RUBBER BAND

12

60mm AXLE II

32

5X10 FRAME

52

70mm RUBBER BAND

13

70mm AXLE II

33

MOTOR WITH SPINDLE GEAR

53

STYROFOAM BALL

14

100mm AXLE II

34

1.5V BATTERY HOLDER

54

SHELL H

15

150mm AXLE I

35

BULB HOLDER

55

SHELL F

16

DUAL AXLE CORE

36

SWITCH

56

70MM ALUMINUM WIRE

17

DUAL AXLE END

37

WIRE CONNECTOR

57

PAPER CLIP

18

DUAL AXLE BODY

38

WIRE CONNECTOR

58

DIE-CUT PAPER

19

ROD CONNECTOR

39

WIRE CLIP

59

1000MM COTTON STRING

20

FRONT CONVERTER

40

WIRE CLIP

60

PEG REMOVER

How to Assemble Assembly 1 Insert Battery While inserting AA-LR6 battery, pay attention for the polarity (+ and -) on the battery holder.

Connecting Battery Holders 1) When battery holders are connected together as shown in Fig. A and B, they are assembled IN SERIES. 2) When battery holders are connected together as shown in Fig. C, they are assembled IN PARALLEL.

The following combinations are never to be made!

Avoid creating short circuit The electricity from a battery is produced through chemical reaction.

Once an electrical circuit is complete, the electric current will flow through the circuit. If there is no any resistance in the circuit (means no any component consuming electricity), then we have a so called "short circuit".

A short circuit is a situation that the electrical current flow through the wires with maximum energy This energy is transformed into heat that will damage the circuit and even cause fire hazard. Also the battery will also be consumed very fast due to this high energy output.

Above picture F to I showing some typical short circuit situation. Picture J is also not allowed, because the losing wire may come in contact with each other, which is again a short circuit.

4

Connecting the Wire Connector to the Switch, Bulb Holder or Motor OFF

ON

Exchanging a Spindle Gear with a Motor Axle Insert the “B” end of a Peg Remover into the bottom of a Spindle Gear and lever it up to remove it. Then put a Motor Axle on and press it down until it is fixed on the metal axle (as Fig. K shows).

Insert the “A” end of a Peg Remover into the bottom of a Motor Axle and lever it up to remove it. Then put a Spindle Gear on and press it down until it is fixed on the metal axle (as Fig. L shows).

K

L

Changing the Bulb 1) Gently squeeze the cap and pull it off the holder (as Fig. M shows).

2) Twist off the worn-out bulb and replace with a new one (as Fig. N shows).

3) Replace the cap to the holder again.

M

N

Pulling Peg Off O

Use the side “A” of the Peg Remover to pull off the Peg (as Fig. O shows).

* The bulb may loosen during transportation.

Check that it is correctly installed in the socket so electricity can flow.

5

Assembly 2 Connecting Base Grid, Frame and Rod Use the Base Connectors to join Base Grids together as Fig. P shows.

P

Both the peg and axle connector can be used to join rods and frames.

Frames can be connected directly to each other end to end.

The History of Electricity and Magnetism In 1785, Charles Augustin Coulomb discovered the interactive relationship between two electric charges and brought us new knowledge about “electricity�.

People thought electricity and magnetism were two irrelevant features in physics until 1802, when Hans Christian Oersted found out the relationship between electric current and magnetism. That is, a magnetic field will be formed around a current-carrying wire. This magnetic field is the same as that formed by a simple magnet. Both of them can make the compass needle deflect. This proves that electricity and magnetism are related to each other and both exist at the same time.

From then on, scientists had been exploring electricity and magnetism for several decades.

Andre Marie Ampere, 1775-1836, devoted himself to the measurement of electricity as a pioneer. The international unit of electric current, A (Ampere), comes after his name. Carl F. Gauss, 1777-1855, valued the strength of electric field. George S. Ohm, 1784-1854, discovered voltage and resistance. Michael Faraday, 1791-1867, used iron filings to show magnetic lines of force on the magnetic field formed around the magnet. These were breakthroughs in traditional knowledge that time.

6

Electricity and Magnetism in Real Life There are lots of electrical appliances in our life. They all need electricity to make them work. Where does electricity come from?

Firstly, we need to know the relationship between electricity and magnetism.

1) Faraday discovered that when moving a magnet in a coil, the change of magetic field will generate electricity in the coil.

2)The phenomenon that electricity is produced from the change of magnetic field caused by the movement of the magnet is called electromagnetic induction.

3)The generated electricity is called induced electricity.

4) The faster the magnet moves, the faster the magnetic field changes in coil, and greater the electric current is induced.

5)The electricity can also be induced by moving the coil towards or away from the magnet instead.

6) Based on this principle, we can generate unlimited electricity by using a mechanical device that continuesly changes the position of magnetic field by continuesly moving the coil. Today, this mechanical device is called "the generator".

a) Insert the magnet rod, a current is induced

b) Hold the magnet rod still, no electric current in the coil

c) Remove the magnet rod, the induced current flows in opposite direction

The difference between a permanent magnet and an electromagnet: An electromagnet has a soft iron core that has wire wrapped around it. The magnetic force can be adjusted by changing the electric current flowed through the winding.

A permanent magnet is made of ferromagtic material that is magnetized by an external magnet field. The magnetic force stays mainly constant or may reduce over the time.

7

Basic Electric Current Electric current

Electric current

Time

The amount and direction of the current are fixed.

Direct current (DC)

Time

The amount and direction of the current change by time

Alternating current (AC)

Fig: Comparison between direct current and alternating current

Positive pole Carbon rod (positive)

Symbol :

Ammonium chloride Manganese dioxide Amylum compound

Zinc (negative) Negative pole Symbol : Fig: Structure of a battery

Voltage 1) The electric potential difference between the positive pole and the negative is called the voltage.

2) The unit of electric voltage is the Volt (V).

3) The voltage of a battery is often 1.5V, which means the electric potential of the positive pole is 1.5V higher than that of the negative.

8

Electric current: a) Electric current is the flow of electric charge in the conductor. b) With the potential difference, plus a conducting wire from positive to negative pole, the electric current happens. c) The direction of the electrical flow is from high to low potential. d) The amount of the electric current is measured by Ampere (A). The speed of the electric current is the same as that of light, about 3x108 meter/seconds.

Water at higher location

Water at lower location

Fig. Electric potential difference resultes in voltage and current.

Battery Holder When we use a battery at home, the positive and negative pole need to be correctly connected.

We usually put it in a battery holder so that wire connectors can easily connect it. Be sure to insert the battery in the correct direction.

Fig. Insert the battery in the correct direction

This product does not include batteries.

9

7 Experiments Experiment-1 Let the bulb shine Let's build a basic circuit including 1 battery holder, bulb holder and wire connectors.

bulb

battery I

Fig. 1 The bulb is shining 1) The battery provides the electric current and voltage the circuit needs. we call it power source.

2) Light bulb is the electrical device in a circuit (the load).

3) The power source and the electrical device are connected with wire connectors.

4) Connect the battery holder, bulb holder with red and black wire connectors.

5) Does the bulb shine?

6) Put your hand close to (but not touching!) the bulb to see if the temperature increased.

Attention: Don’t touch the light bulb, it will become very hot!

Experiment-2 Use the switch to turn on or off the bulb.

Connect the battery holder, switch and bulb holder with wire connectors.

1) When the switch is turned on, it allows the current to go through. This is called a “closed” circuit.

2) When the switch is turned off, it doesn’t allow the current to go through. This is called an “open” circuit.

3) The circuit is shown below:

Fig. a switch battery Fig. b

bulb

I

Fig. 2 Circuit Fig. a : When switch is turned off, the circuit is disconnected, the switch is in an open position.

Fig. b : When switch is turned on, the circuit is connected, the switch is in a close position.

10

Experiment-3 Experiments on batteries in series and in parallel.

Which bulb is brighter in these circuits? Please tick the box with the right answer. switch battery

bulbb

battery Fig. 3-1

I

So the higher the voltage received from the batteries is, the brighter the light bulb will be.

switch battery

bulb

I

Fig. 3-2

ABOUT MOTOR AND THE EXPERIMENTS Rotation of the motor The principle of motor is changing electric energy into magnetic energy and then into kinetic energy in form of motor rotation. The motor rotates and can activate many movable toys.

Experiment-4 Direction of the current and direction of the motor's rotation. switch battery Fig. 4-1

motor

M

I

Direction of motor's rotation： Clockwise Counter-clockwise If exchange two wire connectors on the battery (or on the motor), on which direction will the motor rotate?

switch

I

battery

motor

Fig. 4-2

11

Direction of motor's rotation： Clockwise Counter-clockwise

M

Experiment-5 switch 電池 battery 電池 battery Fig. 5

motor

M

I

Compare Fig. 4-1 (1.5V) with Fig. 5 (3V), which motor rotates faster? Why? (The higher the voltage received from the batteries, the faster the motor will rotate)

Experiment-6 The following Fig. 6 shows "Loads in series" (motor and bulb) switch battery

motor

M

battery bulb Fig. 6

I

Question: Why the bulb light at first then gradually fade out?

Experiment-7 Getting to know conductors and insulators:

switch battery battery Fig. 7

bulb

I

Try to find out which objects can conduct electricity when they are put in the position of the "?" in Fig. 7 (Spoon / Coin / Key / Magnet.. etc.)

12

Flying Propeller Model 1

Parts Needed 1

11

23

26

28

30

x2

x1

x1

x2

x2

x2

31

32

33

34

37

x2

x4

x1

x2

41

42

50

x8

x2

x1

38

x1

x1

1

1

press down

2

2 axle

gear

Exchange the axle for the gear.

X2

3 13

1 Model Flying Propeller

4 5

6

14

Flying Propeller Model 1

7

Complete How to play:

Tips:

B A

1. Press down the square frame, the propeller will fly.

2. Do not touch the spinning propeller!

15

1. If the propeller can not fly up, exchange the connector A and B. The propeller should rotate in clockwise.

2. Do not over tight when you assemble the propeller.

* All models of Electricity and Magnetism should be operated thru the instructions listed in the guidelines. Please do not intentionally use your own battery holder and electromagnets.

2 Model Sports Car

Parts Needed 4

5

7

x1

x1

x2

9

14

15

x2

x1

x1

23

25

26

27

28

30

32

x1

x2

x1

x2

x1

x2

x2

33

34

37

38

42

51

55

x1

x1

x1

x1

x11

x1

x1

1

2

3

16

Sports Car Model 2

5

4

Tip:

15

You should leave 1mm gap between frame and Axle fixing, then the axle will rotate smoothly.

0m

m

Ax

le

I

100mm Rubber band

6

Tip:

The OD53 Pulley and gear should lie along the same line, then the axle will rotate smoothly.

17

2 Model Sports Car

7 10

8

0m

m

Ax

le

â…Ą

10

9

* Please strickly follow the assembly sequence to avoid fire hazard or electrical shock.

Complete

18

Model 3

Optical Illusion Circuit

Parts Needed 4

5

6

9

x1

x1

x2

26

28

31

32

33

34

36

x1

x1

x2

x4

x1

x1

x1

10

x1

x1

14

15

x2

x1

37

38

41

44

51

58

x2

x1

x2

x1

x1

x1

1

150

mm

Axl

eⅠ

m

m

100

0 10 mm

Axle

2

19

Ⅱ

le Ax

Ⅱ

3 Model Optical Illusion Circuit

3

4

5 100mm Rubber band

20

Optical Illusion Circuit

Model 3

7 6

Tip:

You should leave 1mm gap between frame and Axle fixing, then the axle will rotate smoothly.

Complete

* Please strickly follow the assembly sequence to avoid fire hazard or electrical shock.

21

4 Model Fishing Game

Parts Needed 1

3

5

6

7

8

9

11

12

13

x1

x1

x1

x1

x1

x1

x2

x1

x1

x1

22

23

24

25

26

28

30

31

32

34

x2

x1

x1

x1

x5

x2

x2

x3

x4

x1

39

40

41

42

45

46

x1

x1

x11 x9

x1

x1

47

x1

48

57

59

x1

x4

x1

3

58

x1

1

2

4

22

Fishing Game Model 4

5

6

70

mm

AX

LE

Ⅱ

7 8 60

mm

AX

LE

Ⅱ

9

23

4 Model Fishing Game

* Please use Alkaline battery in order to have sufficient power to make all electromagnet experiments work. * Please reel the fine-wire properly. * Be aware of the temperature of the fine-wire and batteries, don't conduct for a long time use.

Complete

Paperclip with your fish.

You can paint your own fish.

1

1

2

2

3

3

4

4

Use sandpaper to remove the insulating paint from the ends of the copper wire.

Bind the reel with copper wire.

How to play:

1. Insert the battery to make the electromagnet work.

2. Go fishing and put them in the basket.

Tip:

Tying knots on axle and dual rod.

* Please strickly follow the assembly sequence to avoid fire hazard or electrical shock.

24

Amusement Park Swing Model 5

Parts Needed 4

15

16

25

28

30

31

x4

x1

x1

x2

x2

x2

x3

32

34

36

x4

x2

x1

43

44

x4

x1

47

37

39

40

41

x1

x1

x1

x8

48

x1

x1

49

x1

58

54

x1

x1

1

1

25

2

2

3

5 Model Amusement Park Swing

3

4 Eâ…

mm

L AX

0 15

6

Grip the copper wire.

5

Grip the copper wire.

1

2

3

26

Amusement Park Swing Model 5 1

7 Bind the stick with copper wire.

2

3

* Please use Alkaline battery in order to have sufficient power to make all electromagnet experiments work. * Please reel the fine-wire properly. * Be aware of the temperature of the fine-wire and batteries, don't conduct for a long time use.

Use sandpaper to remove the insulating paint from the ends of the copper wire.

How to play:

Tips:

Turn the switch on and off regularly, the boat will move back and forth.

1. You should leave 1mm gap between long rod and Axle fixing, then the long rod will rotate smoothly.

Complete

* Please strickly follow the assembly sequence to avoid fire hazard or electrical shock.

27

2. Place the electromagnet on the green part as shown in the photo.

6 Model Rescue Helicopter

Parts Needed 3

7

11

22

23

25

26

28

30

31

x1

x1

x1

x2

x1

x1

x2

x2

x2

x3

32

33

34

36

x1

x1

x2

x1

43

45

46

47

48

49

50

55

58

x1

x1

x1

x1

x1

x1

x1

x1

x1

37

x2

38

39

40

41

42

x1

x1

x1

x7

x9

1

X2

2

3

28

Rescue Helicopter Model 6

1

press down

2 axle

gear

4 Exchange the axle for the gear.

5

6

29

6 Model Rescue Helicopter

7

8

9

30

Rescue Helicopter Model 6

10

Grip the copper wire.

* Please use Alkaline battery in order to have sufficient power to make all electromagnet experiments work. * Please reel the fine-wire properly. * Be aware of the temperature of the fine-wire and batteries, don't conduct for a long time use.

1

2

3

Bind the reel with copper wire.

31

4

Use sandpaper to remove the insulating paint from the ends of the copper wire.

6 Model Rescue Helicopter

Complete

How to play: 1. Turn on the switch to make propeller rotating.

2. Turn on the power of the electromagnet to rescue people.

* Please strickly follow the assembly sequence to avoid fire hazard or electrical shock.

32

Electric Maze Game Model 7

Parts Needed 26

30

x2

x2

37

x2

32

31

39

x1

x2 40

x1

34

x4

35

x2

36

x1

x1

41

42

44

56

x12

x2

x1

x1

2

1

3

33

7 Model Electric Maze Game 1) 2)

1. Use lineman plier to cut 10cm wire and make a circle.

4

You can build your own shaped line.

5

6

Grip the aluminium wire.

34

Electric Maze Game Model 7

7

Grip the aluminium wire.

Complete

How to play:

Tip: Tying knots on axle and dual rod.

1. You can create your own personalized shape.

2. If the ring touches the shape, the bulb will glow.

1. Use lineman plier to cut 3. Try to move the ring along out about 10cm long. the personalized shape without touching it.

2. Make a circle.

* Please strickly follow the assembly sequence to avoid fire hazard or electrical shock.

35

8 Model Goal Keeper

Parts Needed 1

4

5

6

9

10

14

15

19

21

x3

x1

x1

x1

x1

x1

x1

x1

x1

x1

22

23

24

25

26

27

28

30

31

x1

x1

x2

x3

x4

x2

x2

x2

x3

33

34

x1

x2

36

x1

37

x2

38

x1

39

x1

44

46

47

48

51

52

x1

x1

x1

x1

x2

x1

2

40

41

32

x4

42

x1

x18

53

55

57

x1

x1

x1

x9

43

x2

1

58

x1

3

5

4

6 LE

AX mm

â…¡

100

36

Goal Keeper Model 8

8

7 15

0m

m

AX

LE

â…

options

9

10

11 12 100mm Rubber band

37

A

8 Model Goal Keeper

13

14

15

16

18

17

1

2

3

4

Bind the reel with copper wire.

19

20

Use sandpaper to remove the insulating paint from the ends of the copper wire. paperclip on white sheet

38

Goal Keeper Model 8 Grip the copper wire.

21 100mm Rubber band

1

2

70mm RUBBER BAND

100mm RUBBER BAND

22

B

* Please use Alkaline battery in order to have sufficient power to make all electromagnet experiments work. * Please reel the fine-wire properly. * Be aware of the temperature of the fine-wire and batteries, don't conduct for a long time use.

A

B Complete

D A

C

B

Complete Tips:

How to play:

39

1. Follow steps from A to D, and turn on the switch first.

2. Hook on 70mm rubber band.

3. Connect the electromagnet with paperclip.

4. Place the ball on the position.

5. When you turn off the switch, the ball will be shoot off.

6. Place the goal keeper model in front of the ball; you can play now.

1.Tying knot as shown in photo.

2.Taping the goal keeper model on the floor as shown in photo.

* Please strickly follow the assembly sequence to avoid fire hazard or electrical shock.

9 Model Light Tower

Parts Needed 2

5

6

7

9

10

12

13

x2

x1

x2

x2

x2

x1

x1

x1

17

18

19

20

21

23

24

25

26

27

28

x2

x1

x2

x2

x1

x1

x2

x1

x5

x2

x2

29

30

31

33

34

35

37

14

x1

38

16

x1

40

Part16

x1

x2

x3

x1

x2

41

42

43

44

52

x8

x5

x4 x1

x1

x1

x2

x1

x1

1

58

x1

2

100

mm

70m

Axle

Ⅱ

mA xle Ⅱ

3

40

Light Tower Model 9

6

5

4

Wear 70mm Rubber band into 2 wheels.

You can place a battery on now.

8

7

41

The wires have to be wrapped around the long rod.

9 Model Light Tower 60mm Axle â…Ą

9

10

Fit the die-cut into the model.

1

Grip the copper.

2

3

Tips:

1. Grip the copper as shown in photo.

1.The wires have to be wrapped around the long rod.

2. Place a battery before assembling the die-cut papers.

3.You should leave some gap on two sides of the blackwire and redwire as shown in photo then the model will rotate smoothly.

1. You need to leave some gap as shown in photo, the model will rotate smoothly.

42

Light Tower Model 9

12

11

Fit the die-cut into the model.

Complete 1

2

1

2

3

4

3

* All experiments should be operated thru the built model not battery holder(s) only.

43

10 Model Ferris Wheel

Parts Needed 4

5

6

8

9

10

x3

x1

x1

x1

x2

x1

22

23

24

25

26

x2

x1

x2

x3

x5

32

x4

33

x1

34

36

x2

41

42

43

x22

x15

x8

x1 44

x1

14

15

x1

x1

x1

27

28

30

31

x2

x2

x2

x2

39

40

x1

x1

37

x2

13

38

x1

46

47

48

51

57

x1

x1

x1

x1

x4

58

x1

1

2

150mm

AXLE â…

44

Ferris Wheel Model 10

3

100

mm

LE

Ⅱ

mm

70 LE

AX

4

AX

Ⅱ

5

45

10 Model Ferris Wheel 1

6

Front View 2 Folding up Folding up Back View

7

1

Place the paper.

2 Place the blue peg.

8

1

2

Front View 2

1

3 Place paperclip on.

46

Ferris Wheel Model 10 1

2

3

4

Bind the reel with copper wire.

Use sandpaper to remove the insulating paint from the ends of the copper wire.

1

9

2

2

10

47

Change the angle

1

10 Model Ferris Wheel

11

12

Wear 100mm Rubber Band into 2 wheels.

13

48

Ferris Wheel Model 10

14 15

Grip the copper wire.

Grip the copper wire.

Complete 49

10 Model Ferris Wheel

How to play: 1.

When you turn on the switch, the car will stop once the electromagnet attarcts the paperclip. And if you turn off the switch the car will keep moving.

* Please use Alkaline battery in order to have sufficient power to make all electromagnet experiments work. * Please reel the fine-wire properly. * Be aware of the temperature of the fine-wire and batteries, don't conduct for a long time use.

Tips:

1. You can adjust the rod up or down to make the iron core touch the paperclip for each car.

2. Do not over tight the 100mm rubber band. Try to alter the speed of the ferris wheel to the lowest speed.

3. You need to place the car at the 1st hole and the 3rd hole. Make the car rolls loose, then model will work smoothly.

4. Make the 4 frames cross-shaped, the model will work smoothly.

* Please strickly follow the assembly sequence to avoid fire hazard or electrical shock.

50

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R21#7065-3