Standard Science Primary 5 Systems

Ravi is testing different materials in the gap labelled 'X'. Which material will cause the bulb to be the brightest?

A Rubber band
B Wooden toothpick
C Plastic clip
D Copper wire
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Worked Solution

Step 1: To light the bulb, a conductor must be placed in the gap. Step 2: Metals are electrical conductors. Step 3: Copper is a very good conductor of electricity, allowing current to flow easily.

Correct answer: Copper wire

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