Standard Science Primary 4 Matter

Jun Jie pumped 500 cubic cm of air into a 1-litre basketball. Which statement is true about the air inside the ball?

A The air has a definite shape.
B The volume of air is 1000 cubic cm.
C The volume of air is 500 cubic cm.
D The air cannot be compressed anymore.
Show Worked Solution

Worked Solution

Step 1: Air is a gas. Step 2: Gases do not have a definite volume and expand to fill the container they are in. Step 3: The container (ball) is 1-litre (1000 cubic cm), so the air occupies that full volume.

Correct answer: The volume of air is 1000 cubic cm.

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