ElectricityWorks

Circuits
There is a simple low voltage circuit with gaps in it. You have to bridge these with a variety of electrical devices such as a bulb, a buzzer, a motor, a meter and different switches to complete the circuit.

Solar power
Light bulbs representing the sun illuminate a panel of solar cells. The output powers a small motor to rotate a disc. Altering the position of the panel and placing screens in front of it representing different weather conditions alters the speed of the disc.

Conductors
Children place their hands on two plates to complete a low voltage electrical circuit and compare their conductivity with a range of different materials. Probes are also availability to check whether materials are conductors or insulators.

Circuit tester
A tangle of wires are connected across two sets of terminals. Pupils have to find which terminal connects to which using two probes. Another pair of probes can be used to test bulbs and fuses to see if they are blown.

Generator
You can turn a small generator to power a number devices. They can be switched on and off independently to compare the different levels of power input they need.

Morse code
You can explore electricity as a means of communication using a pair of Morse code transmitters. At each tap a buzzer sounds or a light flashes for a long or a short time and, using the code provided, you can pass messages.

Resistance
Using probes pupils can pass a current through a bulb, a buzzer and a motor via different resistances allowing them to observe the effect. Also by moving a knob along the slide of a rheostat - a variable resistor - they can change the volume of a loudspeaker.

Wind power
If you place the two small windmills with sails of different sizes in front of the air flow from fans they will drive turbines to produce electricity. Changing their position or placing objects in front of them alters the output.

Magnets & electricity
A clear tube has a coil of wire in it connected to an LED. When you drop a magnet (unlike the other items provided) down the tube it induces a current lighting the LED as it passes through the coil.

Electromagnet
Children can move an electromagnet across a set of trays to see the effect on their contents when it is switched on. They contain materials, iron nails, small compasses and a circuit with a magnetic switch.

Static electricity
Polystyrene balls and pieces of silver paper are contained in two clear plastic domes. When you rub the domes with a piece of fur or other material the pieces dance about due to the static electricity produced.

Human battery
Four plates, two each of copper and aluminium are connected to a meter. When you place your hands on two different metals you generate a current just like a battery.