Standard Science Primary 5 Cycles

Which of the following would DECREASE the rate of evaporation of water from a container?

A Increasing the temperature of the surroundings.
B Using a container with a smaller exposed surface area.
C Increasing the speed of the wind.
D Decreasing the humidity of the air.
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Worked Solution

Step 1: Recall the factors that increase evaporation: Heat, Wind, Surface Area, and low Humidity. Step 2: The question asks for what DECREASES the rate. Step 3: A smaller exposed surface area means fewer water molecules can escape at once, slowing evaporation.

Correct answer: Using a container with a smaller exposed surface area.

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