Standard Science Primary 5 Cycles

Ravi wants to find out how the surface area affects the rate of evaporation. Which two setups in the diagram should he compare?

A Setups 1 and 4
B Setups 1 and 3
C Setups 1 and 2
D Setups 2 and 3
Show Worked Solution

Worked Solution

Step 1: For a fair test, only the surface area must be different. Step 2: All other variables (temperature, volume of water, presence of wind) must be the same. Step 3: Setups 1 and 2 have different exposed surfaces but the same conditions.

Correct answer: Setups 1 and 2

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