Foundation Science Primary 5 Cycles

Alexa took a cold can of soda out of the refrigerator and placed it on the table. After ten minutes, water droplets formed on the outside of the can. Where did this water come from?

A The ice inside the can melted.
B Water vapour in the surrounding air condensed.
C The cold air around the can evaporated.
D The cold soda leaked through the can.
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Worked Solution

Step 1: The can is cold, meaning its surface temperature is lower than the surrounding air. Step 2: The warm surrounding air contains water vapour (a gas). Step 3: When water vapour touches the cold can, it loses heat and condenses into liquid water droplets.

Correct answer: Water vapour in the surrounding air condensed.

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