Standard Science Primary 6 Interactions

Ravi wants to find out which type of shoe sole has the best grip. He pulls a shoe across a wooden floor using a spring balance. To ensure a fair test, which variable must he change?

A The surface of the floor
B The type of shoe sole
C The weight of the shoe
D The force used to pull the shoe
Show Worked Solution

Worked Solution

Step 1: The aim is to test different shoe soles. Step [2-9]: The independent variable (the one you change) must be the type of sole. Step [2-9]: All other variables must be kept constant.

Correct answer: The type of shoe sole

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