Standard Science Primary 4 Matter

Based on the table below, which of the following correctly identifies substances X, Y, and Z?

A X: Water, Y: Stone, Z: Air
B X: Stone, Y: Air, Z: Water
C X: Stone, Y: Water, Z: Air
D X: Air, Y: Water, Z: Stone
Show Worked Solution

Worked Solution

Step 1: Substance X has a definite shape and volume, so it is a solid (Stone). Step 2: Substance Y has a definite volume but no definite shape, so it is a liquid (Water). Step 3: Substance Z has no definite volume and can be compressed, so it is a gas (Air).

Correct answer: X: Stone, Y: Water, Z: Air

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