Standard Science Primary 4 Energy

Siti wants to keep her fried chicken warm for as long as possible. Which material should she use to line the inside of the container?

A Copper sheet
B Aluminum foil
C Styrofoam
D Steel plate
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Worked Solution

Step 1: Identify the goal (keep food warm/prevent heat loss). Step [2-9]: To prevent heat loss, a poor conductor of heat (insulator) is needed. Step [2-9]: Metals (Aluminum, Steel, Copper) are good conductors. Styrofoam is a poor conductor of heat.

Correct answer: Styrofoam

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