When water is cooled, does IT contract or expand? - ProProfs Discuss

# When water is cooled, does it contract or expand?

A. Contract
B. Expand

This question is part of Test Your Knowledge On the Element of Water!
Asked by Quizbot, Last updated: Jan 18, 2020

#### J. Shatner

J. Shatner, Content writer, Boston

The correct answer to this question is B, Expand. When water freezes, it can expand. When it expands, it does so by 9%. Water freezes at different degrees, dependent upon the degree metric. In Celius, water freezes at 0 degrees. In Fahrenheit, water freezes at 32 degrees. In Kelvin degrees, it freezes at 273.15.

Despite the difference in degrees for the metric, water freezes at these rates because of the unique characteristics that water molecules have. The molecule for water is H20, which comprises of two hydrogens and one oxygen. These molecules are always moving. When the temperature is more relaxed, they move faster.

Contract is correct because when it cool it’s molecules come close

John Smith