Advanced Science Primary 4 Energy

Ravi wants to find out if the thickness of a material affects how well it conducts heat. Which variables should he keep the same for a fair test?

A Type of material and duration of heating
B Starting temperature and thickness
C Thickness and duration of heating
D Type of material and thickness
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Worked Solution

Step 1: Identify the aim: Thickness (Independent) vs Heat Conducted (Dependent). Step [2-9]: For a fair test, only the independent variable changes. Step [2-9]: Material type and time must be constant.

Correct answer: Type of material and duration of heating

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