Standard Science Primary 5 Cycles

Siti wants to dry her wet shoes quickly after walking in the rain. Where should she place her shoes to ensure the fastest rate of evaporation?

A In a dark, enclosed cupboard
B In a sealed plastic bag under the sun
C Under a spinning ceiling fan in a warm room
D Inside a cold refrigerator
Show Worked Solution

Worked Solution

Step 1: Evaporation is faster with higher temperature, greater exposed surface area, and presence of wind. Step 2: A warm room provides heat. Step 3: A spinning fan provides wind to sweep water vapour away. Step 4: This combination maximizes the evaporation rate.

Correct answer: Under a spinning ceiling fan in a warm room

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