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. Which property of air does this show?

A Air can be compressed.
B Air occupies space.
C Air has mass.
D Air has a fixed volume.
Show Worked Solution

Worked Solution

Step 1: Identify the action (pushing the plunger). Step 2: Note that the volume of air inside decreased. Step 3: Recognize that only gases (air) allow for a change in volume under pressure. Step 4: This is called compressibility.

Correct answer: Air can be compressed.

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