Standard Science Primary 4 Energy

What happens to a metal ball when it is heated?

A It gains mass.
B Its volume decreases.
C It loses mass.
D Its volume increases.
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Worked Solution

Step 1: Heating causes matter to expand. Step 2: Expansion means an increase in volume. Step 3: Mass does not change because the number of particles remains the same.

Correct answer: Its volume increases.

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