Standard Science Primary 5 Cycles

Which of the following changes will increase the rate of evaporation of water in a bowl?

A Adding ice cubes to the water
B Pouring the water into a wider tray
C Covering the bowl with a lid
D Placing the bowl in a cold room
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Worked Solution

Step 1: Rate of evaporation increases with higher temperature, stronger wind, and larger exposed surface area. Step 2: Pouring water into a wider tray increases the exposed surface area. Step 3: This allows more water to turn into vapour at a faster rate.

Correct answer: Pouring the water into a wider tray

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