Standard Science Primary 4 Matter

Siti trapped some air in a syringe and covered the nozzle with her finger. She was able to push the plunger in slightly. This shows that air __________.

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

Worked Solution

Step 1: Identify the action (pushing the plunger in while the nozzle is blocked). Step 2: Note that the volume of air inside decreased. Step 3: This ability to decrease volume under pressure is called compressibility. Step 4: Final Answer: Air can be compressed.

Correct answer: can be compressed

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