Standard Science Primary 4 Matter

Siti pushed the plunger of a syringe filled with air while covering the nozzle with her finger. She found that she could push the plunger in slightly. Why is this possible?

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

Worked Solution

Step 1: Identify the state of matter (Air is a gas). Step 2: Recall properties of gases (no fixed volume, can be compressed). Step 3: Pushing the plunger reduces the space the air occupies, showing it is compressible.

Correct answer: Air can be compressed.

Want more questions like this? Superholic Lab has 10,000+ MOE-aligned questions with full worked solutions.

Start Free Trial — 7 Days Free