Standard Science Primary 4 Energy

Which of the following processes involves heat gain?

A Both Freezing and Condensation
B Freezing
C Melting
D Condensation
Show Worked Solution

Worked Solution

Step 1: Evaluate each process. Melting (Solid to Liquid) requires energy/heat gain. Step 2: Freezing (Liquid to Solid) requires heat loss. Step 3: Condensation (Gas to Liquid) requires heat loss. Step 4: Only melting involves heat gain.

Correct answer: Melting

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