Standard Science Primary 4 Matter

Siti compressed a sponge into a small ball. Which of the following statements about the sponge is correct?

A Its volume decreased.
B Its mass decreased.
C Its mass increased.
D Its volume remained the same.
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Worked Solution

Step 1: Identify that the sponge contains air spaces. Step 2: Compressing it pushes the air out, meaning it occupies less space. Step 3: Space occupied is volume. Therefore, volume decreases while mass remains constant.

Correct answer: Its volume decreased.

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