Foundation Science Primary 4 Matter

Which of the following processes involve a substance GAINING heat?

A Condensation and Boiling
B Freezing and Condensation
C Freezing and Melting
D Melting and Boiling
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Worked Solution

Step 1: Melting is the change from solid to liquid. Step [2-9]: Boiling is the change from liquid to gas. Step [2-9]: Both require the absorption of heat energy.

Correct answer: Melting and Boiling

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