Standard Science Primary 5 Cycles

Four identical containers, A, B, C, and D, were filled with 200ml of water. Which container will have the LEAST amount of water left after 3 hours?

A Container A (Large surface area, 30°C)
B Container B (Small surface area, 30°C)
C Container C (Large surface area, 45°C)
D Container D (Small surface area, 45°C)
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Worked Solution

Step 1: Identify factors increasing evaporation: Higher temperature and larger exposed surface area. Step 2: Container C has both the highest temperature (45°C) and the largest surface area. Step 3: Container C will have the fastest rate of evaporation, leaving the least water.

Correct answer: Container C (Large surface area, 45°C)

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