Standard Science Primary 5 Cycles

Luke saw water droplets forming on the outer surface of a cold glass of Milo. Where did the water droplets come from?

A The glass produced water as it cooled down.
B Water evaporated from the Milo.
C Water leaked through the glass.
D Water vapor in the air condensed on the cold surface.
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Worked Solution

Step 1: The air contains invisible water vapor. Step 2: When water vapor touches a cold surface, it loses heat. Step 3: This process is condensation, which turns gas into liquid droplets.

Correct answer: Water vapor in the air condensed on the cold surface.

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