Standard Science Primary 5 Cycles

Sian wanted to find out if the exposed surface area affects the rate of evaporation. Which two setups should she compare for a fair test?

A Setups C and D
B Setups A and C
C Setups B and C
D Setups A and B
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Worked Solution

Step 1: Identify the independent variable (Surface Area). Step 2: Keep all other variables constant (Temperature, volume of water, presence of wind). Step 3: Setups A and C have different container widths but same water volume and temperature.

Correct answer: Setups A and C

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