Advanced Science Primary 5 Cycles

Sara wanted to test how the exposed surface area affects the rate of evaporation. She used two containers, X and Y, with different widths. Which variables must she keep the same for a fair test?

A Volume of water and exposed surface area
B Temperature and size of the container
C Volume of water and location
D Type of container and exposed surface area
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Worked Solution

Step 1: Identify the aim (Test exposed surface area). Step 2: Surface area is the variable to change. Step 3: All other factors like volume of water, temperature, and location must be kept constant. Step 4: Final Answer: Volume of water and location.

Correct answer: Volume of water and location

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