Science 4 · Unit 6: Electricity · Cambridge Primary Science Stage 4

Questions

1. 1. A material that allows electricity to pass through it is an electrical ...

   • conductor
   • insulator
   Check

2. 2. A material that does not allow electricity to pass through it is an electrical ...

   • conductor
   • insulator
   Check

3. 3. A metal key is an electrical ...

   • conductor
   • insulator
   Check

4. 4. Object 3 in the picture is a toy duck made of plastic. Is it an electrical conductor or an electrical insulator?

   • conductor
   • insulator
   Check

5. 5. A metal paper clip is an electrical ...

   • conductor
   • insulator
   Check

6. 6. A paper book is an electrical ...

   • conductor
   • insulator
   Check

7. 7. A metal key is put in the gap in the circuit. Will the lamp light up?

   • Yes
   • No
   Check

8. 8. A plastic toy duck is put in the gap in the circuit. Will the lamp light up?

   • Yes
   • No
   Check

9. 9. A ceramic cup is put in the gap in the circuit. Will the lamp light up?

   • Yes
   • No
   Check

10. 10. A cork is put in the gap in the circuit. Will the lamp light up?

    • Yes
    • No
    Check

11. 11. Materials made of metal, like the key, are electrical ...

    • conductors
    • insulators
    Check

12. 12. Materials made of ceramic, plastic and cork are ... of electricity.

    • conductors
    • insulators
    Check

13. 13. How can Sofia and Zara check that their test circuit works?

    • Touch the two loose wire ends together and see if the lamp lights.
    • Put a plastic spoon in the gap.
    • Take the cell out.
    • Shake the lamp.
    Check

14. 14. Coin, chopstick, glass, plastic spoon: which one will conduct electricity?

    • the coin
    • the chopstick
    • the glass
    • the plastic spoon
    Check

15. 15. How can Sofia and Zara test each object?

    • Look at its colour.
    • Put it in the gap in the circuit and see if the lamp lights.
    • Hold it near the cell.
    • Weigh it.
    Check

16. 16. What do Sofia and Zara conclude?

    • Metals are conductors. Wood, glass and plastic are insulators.
    • All hard materials are conductors.
    • All materials conduct electricity.
    • Only shiny materials are insulators.
    Check

17. 17. Use the conclusion. Is a glass bottle a conductor or an insulator?

    • conductor
    • insulator
    Check

18. 18. Use the conclusion. Is a cork a conductor or an insulator of electricity?

    • conductor
    • insulator
    Check

19. 19. Use the conclusion. Is a plastic spoon a conductor or an insulator of electricity?

    • conductor
    • insulator
    Check