Standard Science Primary 4 Cycles

Siti trapped some air in a syringe and covered the nozzle with her finger. She found that she could push the plunger in slightly. This shows that air __________.

A can be compressed
B has a fixed volume
C takes up space
D has mass
Show Worked Solution

Worked Solution

Step 1: Identify that the syringe is sealed. Step 2: The plunger moving in means the volume of air decreased. Step 3: Only gases (air) can have their volume reduced under pressure. This is called compression.

Correct answer: can be compressed

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