What is a Circuit?

What do you need to make a complete circuit?

• Water and plastic

• Battery, wires, and a bulb

• Paper and pencil

• Rock and scissors

Which of these materials is a conductor?

• Wood

• Rubber

• Copper

• Plastic

What is the job of a switch in a circuit?

• To eat electricity

• To turn the circuit on and off

• To make the light brighter

• To connect the battery to the TV

Why are wires often covered in plastic?

• To make them colourful

• So they can bend easily

• To keep electricity in and protect us

• To make them heavier

What happens if there is a break in the circuit?

• The light gets brighter

• Electricity moves faster

• Nothing happens – the circuit stops working

• It starts to make noise

Explain why it is important to use insulators when working with electricity. Give an example.

What would happen if you tried to use a wooden stick instead of a wire in a circuit? Why?

Copper is a good conductor of electricity.

Rubber and plastic are examples of conductors.

A circuit needs to be complete for electricity to flow.