How much does water expand when it's frozen?
Asked by: Remi


Short Answer: by about 9% to 10%

Long Answer:

Normally, things expand when heated and contract when cooled. Water is an exception to this rule. Even though water does expand when heated and contract when cooled at most temperatures, water expands when cooled and contracts when heated between 4 degrees Celsius and 0 degrees Celsius.

A very good web site about the properties and oddities of water can be found on the Okanagan University, Dept. of Geology website at:
Answered by: Charles Hill, Network Engineer, Deltona, FL

Science Quote

'Strange is our situation here upon the earth. Each of us comes for a short visit, not knowing why, yet sometimes seeming to divine a purpose.'

Albert Einstein

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