Back to the lesson and practice
PrintablePractice worksheet
Do it🖨️ On paper✏️ On screen
Layout1 column2 columns
Answer keyNoneAnswersWith steps
Questions10162430
LevelEasierMixedHarder
Print sizeNormalLarge print
New copyMake a new one

Free to print and copy for home or class. This link always prints the same sheet.

eurekami

Electrical conductors and insulators

3rd grade (Year 4 in England) · 16 questions · Common Core: NGSS.4-PS3-2 · England: KS2 Y4 Electricity

Name

Date

Score/ 16

  1. Question 1

    A steel spoon is placed in the gap in this circuit and the switch is closed. Will the bulb light?

    1.5 Vgap
    • A. yes
    • B. no

  2. Question 2

    If you put a wooden spoon in the gap in a circuit, would it conduct electricity or insulate?

    • A. conductor
    • B. insulator

  3. Question 3

    Which is the best insulator to use for the handle of a screwdriver for electricians?

    • A. hard rubber or plastic
    • B. steel
    • C. aluminium (aluminum)
    • D. copper

  4. Question 4

    A plastic ruler is placed in the gap in this circuit and the switch is closed. Will the bulb light?

    1.5 Vgap
    • A. yes
    • B. no

  5. Question 5

    If you put a gold ring in the gap in a circuit, would it conduct electricity or insulate?

    • A. conductor
    • B. insulator

  6. Question 6

    Which metal is most often used for electrical wires in homes?

    • A. copper
    • B. gold
    • C. iron
    • D. lead

  7. Question 7

    A plastic ruler is placed in the gap in this circuit and the switch is closed. Will the bulb light?

    1.5 Vgap
    • A. yes
    • B. no

  8. Question 8

    If you put a copper wire in the gap in a circuit, would it conduct electricity or insulate?

    • A. conductor
    • B. insulator

  9. Question 9

    Which metal is most often used for electrical wires in homes?

    • A. copper
    • B. iron
    • C. lead
    • D. gold

  10. Question 10

    A rubber band is placed in the gap in this circuit and the switch is closed. Will the bulb light?

    1.5 Vgap
    • A. yes
    • B. no

  11. Question 11

    If you put a rubber band in the gap in a circuit, would it conduct electricity or insulate?

    • A. conductor
    • B. insulator

  12. Question 12

    Which metal is most often used for electrical wires in homes?

    • A. copper
    • B. lead
    • C. iron
    • D. gold

  13. Question 13

    A graphite pencil lead is placed in the gap in this circuit and the switch is closed. Will the bulb light?

    1.5 Vgap
    • A. yes
    • B. no

  14. Question 14

    If you put aluminium (aluminum) foil in the gap in a circuit, would it conduct electricity or insulate?

    • A. conductor
    • B. insulator

  15. Question 15

    Why are electrical wires covered in plastic?

    • A. To make the electricity flow faster
    • B. Plastic conducts electricity better
    • C. To make the wire heavier
    • D. Plastic is an insulator, so it keeps the current in the wire and keeps us safe

  16. Question 16

    A glass marble is placed in the gap in this circuit and the switch is closed. Will the bulb light?

    1.5 Vgap
    • A. yes
    • B. no

All done? Color in the animal! · Free from eurekami.com/math

for the adult only

Answer key: Electrical conductors and insulators

  1. 1. A. yes

  2. 2. B. insulator

  3. 3. A. hard rubber or plastic

  4. 4. B. no

  5. 5. A. conductor

  6. 6. A. copper

  7. 7. B. no

  8. 8. A. conductor

  9. 9. A. copper

  10. 10. B. no

  11. 11. B. insulator

  12. 12. A. copper

  13. 13. A. yes

  14. 14. A. conductor

  15. 15. D. Plastic is an insulator, so it keeps the current in the wire and keeps us safe

  16. 16. B. no