Advanced Science Primary 4 Matter

A container is filled to the brim with 200 ml of water. A stone with a volume of 50 cm³ is lowered into the water. What will happen?

A The volume of water remains at 200 ml.
B The total volume will become 250 ml.
C 50 ml of water will overflow.
D The stone will float on the surface.
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Worked Solution

Step 1: Matter (the stone) occupies space. Step [2-9]: Since the container is full, it cannot accommodate the additional volume of the stone. Step [2-9]: The stone will displace its own volume of water (50 cm³ = 50 ml), causing it to overflow.

Correct answer: 50 ml of water will overflow.

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