Standard Science Primary 4 Energy

Michael wants to keep his hot soup warm for a long time. Which material should he use to wrap the container?

A Aluminum foil
B Copper sheet
C Thin plastic wrap
D Woolen cloth
Show Worked Solution

Worked Solution

Step 1: To keep things warm, we need a poor conductor of heat (insulator). Step 2: Wool traps air, which is a very poor conductor of heat.

Correct answer: Woolen cloth

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