Standard Science Primary 4 Energy

The liquid in a thermometer drops when it is placed in a bowl of ice. Which statement explains this?

A The liquid gains heat and expands.
B The liquid gains heat and contracts.
C The liquid loses heat and contracts.
D The liquid loses heat and expands.
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Worked Solution

Step 1: Ice is colder than the thermometer liquid. Step 2: Heat flows from the liquid to the ice (loss of heat). Step 3: When liquids lose heat, they contract and occupy less space, causing the level to drop.

Correct answer: The liquid loses heat and contracts.

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