Advanced Science Primary 3 Diversity

Ravi wants to design a raincoat that is lightweight and durable. He compares Material X and Material Y as shown in the experimental setup. What is the independent variable in this experiment?

A The weight of the material.
B The type of material.
C The duration of the test.
D The amount of water absorbed.
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Worked Solution

Step 1: Identify the goal (comparing two materials). Step [2-9]: The independent variable is the one purposely changed by the experimenter. Step [2-9]: Since he is testing Material X vs Material Y, the type of material is the independent variable.

Correct answer: The type of material.

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