Standard Science Primary 5 Cycles

Jun Jie wants to find out if the surface area of water affects the rate of evaporation. Which variables must he keep the same?

A Surface area, Volume of water, Location
B Volume of water, Temperature, Location
C Temperature, Humidity, Surface area
D Type of container, Surface area, Temperature
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Worked Solution

Step 1: The factor being tested (Surface Area) must be changed. Step 2: All other environmental and physical factors (Volume, Temp, Wind/Location) must be constant for a fair test.

Correct answer: Volume of water, Temperature, Location

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