Standard Science Primary 5 Cycles

Stan took a cold can of soda out of the refrigerator and placed it on a table. Ten minutes later, he noticed a puddle of water around the base of the can. What caused the puddle?

A Ice inside the can melted and seeped through.
B Water vapour from the surrounding air condensed on the cold can.
C The can leaked soda from the bottom.
D The cold air around the can melted into water.
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Worked Solution

Step 1: The can is cold, making its surface cooler than the surrounding air. Step 2: Warm water vapour in the surrounding air touches the cold surface. Step 3: The water vapour loses heat and condenses into water droplets. Step 4: These droplets gather and drip down to form a puddle.

Correct answer: Water vapour from the surrounding air condensed on the cold can.

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