Standard Science Primary 5 Cycles

What happens to water vapour when it touches a cold surface?

A It gains heat and evaporates.
B It loses heat and evaporates.
C It gains heat and condenses.
D It loses heat and condenses.
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Worked Solution

Step 1: Water vapour is a gas at a higher temperature than the cold surface. Step 2: When it touches the cold surface, heat travels from the vapour to the surface. Step 3: Losing heat causes the gas to change into liquid (condensation).

Correct answer: It loses heat and condenses.

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