Standard Science Primary 4 Energy

Siti placed four spoons made of different materials into a bowl of hot water at 90°C. After 5 minutes, which spoon will feel the HOTTEST to touch?

A Metal spoon
B Ceramic spoon
C Wooden spoon
D Plastic spoon
Show Worked Solution

Worked Solution

Step 1: Identify that the water is hotter than the spoons. Step 2: Heat flows from the hot water to the spoons by conduction. Step 3: Metal is a good conductor of heat and gains heat the fastest. Step 4: Therefore, the metal spoon will reach the highest temperature in 5 minutes.

Correct answer: Metal spoon

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