In pairs we made a buzzer/bulb game which really tested our knowledge of complete and broken circuits, conductors and insulators. Success – we all managed to make a buzzer game work.

Our key questions were:

How can I make the bulb brighter?

How can I make the buzzer louder?

What happens when the handle touches the zig zag wire?

Why is it safer to hold a wooden handle?

What have I made when the buzzer goes off?

What have I made when the buzzer is silent?