Standard Science Primary 4 Matter

Siti trapped some substance in a syringe and pushed the plunger. The plunger moved in slightly. What state of matter was the substance in?

A Liquid only
B Gas only
C Either a solid or a liquid
D Solid only
Show Worked Solution

Worked Solution

Step 1: Identify the observation (plunger moved in). Step 2: Recognize that movement indicates the volume of the substance decreased (compression). Step 3: Only gases do not have a definite volume and can be compressed.

Correct answer: Gas only

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