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Melting Ice (Thomas Northcut/Getty)Does ice melt more quickly in air or in water? Quick answer: water, assuming the air and water are the same temperature. Longer answer: Usually water, because the molecules in liquid water are more tightly packed than the molecules in air, allowing more contact with the ice and a greater rate of heat transfer. Also, water has a higher heat capacity than air.

Initially the surface area of ice melting in air and ice melting in water is the same, but as ice melts in air a thin layer of water results, which absorbs some of the heat from the air and slightly insulates the remaining ice.

When you melt an ice cube in a cup of water it is exposed to both air and water. The part of the ice cube in the water melts faster than the ice in the air, but as the ice cube melts, it sinks further down. If you support the ice to prevent the ice cube from sinking, you could see the part of the ice in the water would melt more quickly than the part in the air.

Other factors come into play. If the air is blowing across the ice cube, then the increased circulation may allow the ice to melt faster in air than in water. If the air and water are different temperatures, the ice may melt more quickly in the medium with the higher temperature.

Can Melting Ice Overflow a Glass? | Why Ice Floats


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(3) chaz says:

im doing a science projet

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(4) yo says:

i am also doing a project

November 14, 2010 at 6:09 pm
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(8) adreannah says:

i am doing this project on ice in this is science ROCK ON !!!!!!!!!

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December 29, 2011 at 5:16 pm
(11) elijah says:

this is very good imformation for my science project

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(12) dillen says:

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(13) pretty diamond says:

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February 4, 2012 at 12:17 pm
(14) tyleah says:

im doin my stem fair project

February 10, 2012 at 8:18 pm
(15) Iceman says:

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May 11, 2012 at 10:49 am
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December 16, 2012 at 8:23 pm
(19) sexy nothing says:

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December 29, 2012 at 12:47 pm
(20) sara says:

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January 17, 2013 at 4:24 pm
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January 18, 2013 at 7:05 pm
(22) coolgirl26 says:

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