Foundation Science Primary 4 Matter

Which of the following is a property that is unique to gases compared to solids and liquids?

A Gases have mass.
B Gases have a fixed volume.
C Gases occupy space.
D Gases can be compressed.
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Worked Solution

Step 1: Recall the properties of the three states of matter. Step [2-9]: Solids and liquids cannot be compressed significantly. Step [2-9]: Only gases have no fixed volume and can be compressed into a smaller space.

Correct answer: Gases can be compressed.

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