Standard Science Primary 5 Systems

Which material should Luke use to test if the bulb in his circuit will light up?

A An iron nail
B A glass rod
C A rubber band
D A plastic ruler
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Worked Solution

Step 1: The bulb lights up only if the material is an electrical conductor. Step 2: Metals are good conductors of electricity. Step 3: The iron nail is the only metal listed.

Correct answer: An iron nail

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