Standard Science Primary 4 Energy

Why are the bases of frying pans usually made of metal while the handles are made of plastic?

A Metal is a poor conductor; plastic is a good conductor.
B Metal is flexible; plastic is stiff.
C Metal gains heat slowly; plastic gains heat quickly.
D Metal is a good conductor; plastic is a poor conductor.
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Worked Solution

Step 1: The base needs to transfer heat to the food (Good conductor needed). Step 2: The handle needs to stay cool for the user to hold (Poor conductor needed). Step 3: Metals conduct heat well; plastics do not.

Correct answer: Metal is a good conductor; plastic is a poor conductor.

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