Standard Science Primary 6 Energy

Ravi tested several materials in a circuit. Which of the following would cause the bulb to light up?

A Iron nail
B Rubber eraser
C Plastic ruler
D Wooden chopstick
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Worked Solution

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

Correct answer: Iron nail

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