Standard Science Primary 4 Matter

Siti trapped some air in a syringe and pushed the plunger. She noticed the plunger could be pushed in slightly even when the nozzle was blocked. This shows that air __________.

A has a fixed volume
B has no mass
C can be compressed
D occupies space
Show Worked Solution

Worked Solution

Step 1: The nozzle is blocked, so no air escapes. Step 2: Pushing the plunger reduces the space the air takes up. Step 3: This ability to decrease volume under pressure is called compression.

Correct answer: can be compressed

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