Standard Science Primary 3 Interactions

Rey filled a syringe with air and sealed the nozzle with his finger. He was able to push the plunger in slightly. Why?

A Air has no mass.
B Air has no definite volume.
C Air has no definite shape.
D Air is a solid.
Show Worked Solution

Worked Solution

Step 1: Pushing the plunger in reduces the space occupied by the air. Step 2: This is called compression. Step 3: Only gases can be compressed significantly because they have no definite volume.

Correct answer: Air has no definite volume.

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