Standard Science Primary 4 Energy

When a flask of colored water is placed in a basin of ice, the level of water in the narrow glass tube falls. This is because __________.

A some water evaporated
B the water gained heat and expanded
C the flask expanded
D the water lost heat and contracted
Show Worked Solution

Worked Solution

Step 1: Ice is colder than the water. Step 2: The water loses heat to the ice. Step 3: Matter (liquids) contracts when losing heat, causing the level to fall.

Correct answer: the water lost heat and contracted

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