Static Electricity and Simple Circuits

Answer Key - Grade 3 Science Worksheet

Write yes or no.

1. 1.

   A loop has a battery, a bulb and a paper clip joining a gap in the wire. Does the bulb light? Answer: yes

2. 2.

   A loop has a battery, a bulb and a plastic spoon joining a gap in the wire. Does the bulb light? Answer: no

3. 3.

   A battery is joined to a bulb in a loop, and a switch in the loop is open, so there is a gap. Does the bulb light? Answer: no

4. 4.

   A loop has a battery, a bulb and an aluminum foil strip joining a gap in the wire. Does the bulb light? Answer: yes

5. 5.

   A lamp is plugged in and switched on. Does the bulb light? Answer: yes

6. 6.

   A battery and a bulb are joined by wires in a full circle. Does the bulb light? Answer: yes

7. 7.

   A loop has a battery, a bulb and a copper coin joining a gap in the wire. Does the bulb light? Answer: yes

8. 8.

   A loop has a battery, a bulb and a metal key that touches both ends of the gap. Does the bulb light? Answer: yes