Difference between revisions of "Ice"
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(specify which kind of ice is less dense than water) |
(please discuss the "phases" on the talk page) |
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| − | '''Ice''' is the [[solid]] phase of [[water]]. At one atmosphere of [[pressure]], ice melts at 32 degrees [[Fahrenheit]] (0 degrees [[Celsius]]). | + | '''Ice''' is the [[solid]] phase of [[water]]. At one atmosphere of [[pressure]], ice melts at 32 degrees [[Fahrenheit]] (0 degrees [[Celsius]]). |
| − | Due to the nature of its crystalline structure, ice | + | Due to the nature of its crystalline structure, ice is slightly less dense than liquid water, causing it to float. |
70% of the world's fresh water is ice, almost all of it located at the polar ice caps in [[Antarctica]] and the [[Arctic]] (compared to the ice caps, the amount of ice stored in freezers in warmer areas is negligible). However, this only constitutes a small percentage of the Earth's overall water reserves<ref>[http://www.globalchange.umich.edu/globalchange2/current/lectures/freshwater_supply/freshwater.html The Water Resources of Earth]</ref>. | 70% of the world's fresh water is ice, almost all of it located at the polar ice caps in [[Antarctica]] and the [[Arctic]] (compared to the ice caps, the amount of ice stored in freezers in warmer areas is negligible). However, this only constitutes a small percentage of the Earth's overall water reserves<ref>[http://www.globalchange.umich.edu/globalchange2/current/lectures/freshwater_supply/freshwater.html The Water Resources of Earth]</ref>. | ||
Revision as of 23:29, January 3, 2010
Ice is the solid phase of water. At one atmosphere of pressure, ice melts at 32 degrees Fahrenheit (0 degrees Celsius).
Due to the nature of its crystalline structure, ice is slightly less dense than liquid water, causing it to float.
70% of the world's fresh water is ice, almost all of it located at the polar ice caps in Antarctica and the Arctic (compared to the ice caps, the amount of ice stored in freezers in warmer areas is negligible). However, this only constitutes a small percentage of the Earth's overall water reserves[1].