Science

Cell –  a device, which converts chemical energy into electrical energy.

Bulb – the glass part of an electric lamp, which gives out light when electricity passes through it.

Battery -  collection of cells that converts chemical energy into electrical energy

Circuit – a complete route which an electric current can flow around

Switch - a small control for an electrical device which you use to turn the device on or off

Wires - a long thin piece of metal that is used to fasten things or to carry electric current