Standard Science Primary 4 Energy

Why is the handle of a kettle usually made of plastic or wood?

A To allow heat to flow to the hand quickly.
B Because plastic and wood are poor conductors of heat.
C To make the kettle boil faster.
D Because they are stronger than metal.
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Worked Solution

Step 1: The body of the kettle is metal (good conductor) to heat water. Step 2: The handle must be safe to touch. Step 3: Poor conductors like plastic reduce heat transfer to the hand.

Correct answer: Because plastic and wood are poor conductors of heat.

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