# Students kit Electrical circuits

Children experience electricity everywhere in their everyday life. This kit helps to explain how electricity is used to produce light, heat and motion.
Children will also learn that electricity can flow under certain conditions only.

The topics covered include the following:

• Open and closed circuits
• Series and parallel connections
• Conducting and non-conducting materials
• Dangers of electric current
• How electricity gets to your home

Teacher’s manual ‘Experiments in workstations: Electric circuits
With copy templates covering 33 workstations

Age 9-10
Materials for up to 33 workstations (for 33 children at least)

Art. no. 31772

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further product description

### Technical specifications

Size of kit: 540 x 450 x 150 mm

experiments
• 1 - Station 3: battery test

### experiment "Station 3: battery test"

The children repeat the insights about handling batteries and light bulbs from station 2 and they learn to assess the condition of batteries.

• 2 - Station 6, 7 and 8: Old Batteries

### experiment "Station 6, 7 and 8: Old Batteries"

The children usually bring the “old” batteries they need from home. On average, five dead batteries can be found there. Since the "residence time" of batteries in households is four years on average according to the statistics of the GRS battery take-back service, it is conceivable that copies that have already "expired" are brought along.

• 3 - Station 12 and 13: Lamps around us / A lamp exhibition

### experiment "Station 12 and 13: Lamps around us / A lamp exhibition"

The aim of these two stations is to become aware of how many lamps can be found in our households and the different shapes they have.

• 4 - Station 16: Murat's pen flashlight

### experiment "Station 16: Murat's pen flashlight"

In terms of goals, this suggestion is similar to Station 15, but the technical problem lies less in the stability of the connections than in the narrowness of the pencil case. Even if you have partially cleared them out, the binding posts are not easy to attach in such a way that they fit in your pocket and do not cause a short circuit.

• 5 - Station 17: Jana's Lightship

### experiment "Station 17: Jana's Lightship"

The children build a milk carton ship out of a milk carton, which they lower into the water (in a tub).

• 6 - Station 19: Sonja has two lamps on her vehicle

### experiment "Station 19: Sonja has two lamps on her vehicle"

The installation of lighting in vehicles (station 18) always awakens the desire to mount two lamps. This created a motivating situation to deal with series and parallel circuits.

• 7 - Station 20: Sasha and Derya are testing each other as electricians

### experiment "Station 20: Sasha and Derya are testing each other as electricians"

With the double-sided station sheet 20, the children practice something very important, troubleshooting.

• 8 - Station 21 and 22: Murat's pen flashlight even more practical / switch in our apartment

### experiment "Station 21 and 22: Murat's pen flashlight even more practical / switch in our apartment"

This suggestion complements the experimental setup of Station 16.
It is a worthwhile task to realize how many switches one encounters at home - Station 22 encourages this.

• 9 - Station 24: Four switches, on and off

### experiment "Station 24: Four switches, on and off"

Here, what the children recognized from the lever switch in the box is transferred to three switch types that are common in the household: a “gap” in a circuit is always closed or opened.

• 10 - Station 28: Heat from the battery

### experiment "Station 28: Heat from the battery"

The children get to know heating wires and test them out on a pole plate.

• 11 - Station 32: The trembling roller coaster

### experiment "Station 32: The trembling roller coaster"

The "trembling roller coaster" is called that because of its shape and because you need a steady hand if you don't want to light up the lamp while you are guiding the loop along the track. The very making of this game leads to an exploration of the simple electric circuit. The point of using it is not to close the circuit.

• 12 - Station 33: The Robot Game

### experiment "Station 33: The Robot Game"

If you touch the pole plate with the free end of the wire, the wrapped nail becomes magnetic - it has become an electromagnet. From this you can make different games ... With it you can z. B. Carefully pick up another nail. If the current flow is interrupted, the magnetic force is released and the "load" falls off when it is heavy enough.

• 13 - Station 2: Experiments with lamp and battery

### experiment "Station 2: Experiments with lamp and battery"

Children are encouraged to light up the lightbulb in different ways. This task has two solutions, once the long pole sheet (minus) touches the contact plate and the short pole sheet (plus) touches the thread and vice versa.

• 14 - Station 4: Alessandro Volta, the inventor of the "battery

### experiment "Station 4: Alessandro Volta, the inventor of the "battery"

With this text about Alessandro Volta, a recurring framework plan requirement is met, to acquaint the children with "researchers" and "inventors" or even namesakes.

• 15 - Station 11: Why does our lamp shine? Circuit 1 and 2

### experiment "Station 11: Why does our lamp shine? Circuit 1 and 2"

Children who deal with Station 11 in partner work develop an elementary school idea of ​​what is happening in the battery. It will be deepened later in secondary school.

• 16 - Station 15: Katharina's and Philipp's buttonhole lamp

### experiment "Station 15: Katharina's and Philipp's buttonhole lamp"

The suggestion encourages the children to set up a simple electrical circuit and make it so stable that it works safely even with violent movements.

• 17 - Station 18: Florian and Ayla do a car lighting test

### experiment "Station 18: Florian and Ayla do a car lighting test"

The "test" leads to a lasting examination of the children with the question of the technically correct, mechanically stable connection of the lamp.

• 18 - Station 25: Switch, self-made

### experiment "Station 25: Switch, self-made"

Many outline plans suggest building your own switches. The children can make or apply elementary experiences. The station sheet encourages you to try out two different switch types, the rotary switch and the button.

• 19 - Station 26 and 27: The bicycle lights

### experiment "Station 26 and 27: The bicycle lights"

The children study bicycle lighting technology.

• 20 - Station 30: Seven Times Danger to Life

### experiment "Station 30: Seven Times Danger to Life"

The aim of dealing with this text is to know the danger that comes from currents over 9 volts. In many cases, they are referred to in writing.

• 21 - Station 31: How to protect yourself from electric shock?

### experiment "Station 31: How to protect yourself from electric shock?"

To answer this question experimentally, the substances contained in the collection of small items are tested. The station sheet shows which material is involved.

scope of supply
• 1 × Copper wire, half-hard 2 mm Ø (200 mm long)
• 2 × Copper wire, supple 1,5mm(450 mm long)
• 1 × Plastic base, grey with two terminals, 120x90 mm
• 1 × Plastic case ca.540x450x150 mm
• 1 × Storing diagram,int.vers.
• 1 × Foam insert 2 for 31772, 515x360x70 mm
• 1 × Foam insert 1 for 31772, 515x350x55 mm
• 2 × Crocodile clip with 4 mm plug
• 1 × Wooden board, 120x90 mm
• 1 × Glue, paper clips and thumbtacks in a small box
• 1 × Construction set for vehicle
• 15 × Set of assorted material samples
• 1 × Heating wire , covered, 0,20 mm Ø (20 m)
• 1 × Copper wire varnished, 0,25 mm Ø (60 m)
• 1 × Copper wire with insulation (20 m)
• 7 × Spool for keeping wire, 60x60 mm
• 15 × Knife switch, single polesingle throw
• 15 × Screw driver 110 mm
• 32 × Terminal clip, 7 mm (Pole clamp)
• 15 × Bulb holder MES
• 2 × Bulb MES 3,5 V / 0,2 A (10 pcs.)
• 15 × Battery cell, 4,5 V 3R12
• 15 × Thermometer student type –3°C to +103°C
• 1 × Plastic box 60x50x30 mm
• 1 ×
• 1 ×
• 1 ×