Standard Science Primary 4 Matter

Why can more air be pumped into an already inflated football?

A Air takes the shape of the football.
B Air can be compressed.
C Air has a definite volume.
D Air has no mass.
Show Worked Solution

Worked Solution

Step 1: Air is a gas. Step 2: Particles in a gas have large spaces between them and can be pushed closer. Step 3: This allows air to be compressed into the fixed volume of the ball.

Correct answer: Air can be compressed.

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