Below a temperature of 4°C (39°F), water expands as it continues to cool.

Name: Below a temperature of 4°C (39°F), water expands as it continues to cool.
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Quizplus · Accepted Answer

This is due to the unique properties of water when it is in a liquid state. As water cools below 4°C, the hydrogen bonds between water molecules begin to arrange themselves in a more structured way, which causes the molecules to take up more space and expand. This is why ice floats on top of water, since it is less dense than liquid water.

Below a Temperature of 4°C (39°F), Water Expands as It