iStarSign inScience 2 · Unit 6: Electricity · Cambridge Primary Science Stage 2
6.2 Keep safe with electricity
13 questions · e.g. What is the plastic on a wire for?
Questions
1. Should children touch mains wall sockets?
Check2. Why is it dangerous to touch mains appliances with wet hands?
- Wet hands are slippery.
- Water turns off electricity.
- Mains electricity can move through water.
- Water makes appliances cold.
3. What is the plastic on a wire for?
Check4. Which part of a wire does electricity move through?
Check5. What could happen if you touch a damaged wire?
Check6. What might happen if you touch a broken cell?
Check7. Should you put a cell in a fire?
Check8. Why keep dust and dirt away from wall sockets?
- Sockets need dust.
- Dust makes the lights brighter.
- Dirt is too heavy.
- Electricity can move through dust and dirt.
9. Marcus says 'This radio still works, so it must be safe,' but its wire is damaged. Is he right?
Check10. Why should you never stick anything into a wall socket?
- It might get stuck.
- It makes a noise.
- It will break the socket.
- The metal parts inside could give you an electric shock.
11. How do you know an appliance is mains-powered?
Check12. A wire is lying across the floor. What could happen?
Check13. Which rule keeps you safe with electricity?
- Keep water away from electrical appliances.
- Touch sockets with wet hands.
- Open cells to look inside.
- Play with damaged wires.