Standard Science Primary 4 Energy

Siti placed a metal spoon and a plastic spoon into a bowl of hot soup. After 5 minutes, why did the metal spoon feel hotter than the plastic spoon?

A The metal spoon gained heat from the air.
B The plastic spoon is a better conductor of heat than the metal spoon.
C The plastic spoon lost heat to the soup.
D The metal spoon is a better conductor of heat than the plastic spoon.
Show Worked Solution

Worked Solution

Step 1: Identify the heat source (hot soup). Step [2-9]: Compare material properties. Metal allows heat to flow through it quickly. Step [2-9]: Metal is a good conductor; plastic is a poor conductor.

Correct answer: The metal spoon is a better conductor of heat than the plastic spoon.

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