Standard Science Primary 5 Cycles

Siti hung four identical wet towels in different conditions. Which towel will dry the SLOWEST?

A An unfolded towel in a dark, still room
B A folded towel in a dark, still room
C A folded towel in a sunny, windy place
D An unfolded towel in a sunny, windy place
Show Worked Solution

Worked Solution

Step 1: Evaporation is slower when there is less surface area (folded). Step 2: Evaporation is slower when it is cool (dark) and there is no wind (still). Step 3: The combination of folded, dark, and still leads to the slowest rate.

Correct answer: A folded towel in a dark, still room

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