Standard Science Primary 5 Cycles

Siti wants to dry her wet shoes quickly. Which of the following conditions will help her shoes dry the fastest?

A Place them under the hot sun on a windy day.
B Place them outdoors on a cloudy, still day.
C Place them in a cool, dark room.
D Place them in a sealed plastic bag under the sun.
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Worked Solution

Step 1: Drying requires evaporation (liquid water turning into water vapour). Step 2: Evaporation rate increases with higher temperature and stronger wind. Step 3: The hot sun provides heat, and the wind removes water vapour quickly, speeding up the process.

Correct answer: Place them under the hot sun on a windy day.

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