Ice

Ice is water frozen into a solid state. Depending on the presence of impurities such as particles of soil or bubbles of air, it can appear transparent or a more or less opaque bluish-white color.

In the Solar System, ice is abundant and occurs naturally from as close to the Sun as Mercury to as far as the Oort cloud. Beyond the Solar System, it occurs as interstellar ice. It is abundant on Earth's surface  particularly in the polar regions and above the snow line  and, as a common form of precipitation and deposition, plays a key role in Earth's water cycle and climate. It falls as snowflakes and hail or occurs as frost, icicles or ice spikes.

Ice molecules can exhibit up to sixteen different phases (packing geometries) that depend on temperature and pressure. When water is cooled rapidly (quenching), up to three different types of amorphous ice can form depending on the history of its pressure and temperature. When cooled slowly correlated proton tunneling occurs below 20 K giving rise to macroscopic quantum phenomena. Virtually all the ice on Earth's surface and in its atmosphere is of a hexagonal crystalline structure denoted as ice Ih (spoken as "ice one h") with minute traces of cubic ice denoted as ice Ic. The most common phase transition to ice Ih occurs when liquid water is cooled below 0°C (273.15K, 32°F) at standard atmospheric pressure. It may also be deposited directly by water vapor, as happens in the formation of frost. The transition from ice to water is melting and from ice directly to water vapor is sublimation.

This page contains text from Wikipedia, the Free Encyclopedia - https://wn.com/Ice

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IFL Science 27 Jan 2020
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Greece Rebuffs Turkish Demands to Demilitarize Aegean Islands

Voa News 27 Jan 2020
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Kansas officials: Body found in burned out Vermillion home

Emporia Gazette 25 Jan 2020
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The eastern Mediterranean is a sea of political troubles again

Stars and Stripes 25 Jan 2020
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Mexico Energy Reforms on hold, AMLO mixed message has quieted investors but still wary

Petroleum World 24 Jan 2020
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Inner complexity in Saturn moon 'Enceladus' hints at habitable conditions

India TV 23 Jan 2020
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How Turkey is angering its Mediterranean neighbours with gas drilling ambitions

Gulf News 23 Jan 2020
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Timeline: Downtown Pittsburgh sinkhole repairs

WPXI 22 Jan 2020
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Video reveals unused earthquake aid in Puerto Rico: “We are outraged”

Denver Post 21 Jan 2020
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Puerto Rican officials begin distributing Hurricane Maria supplies found in warehouse

Henry Herald 21 Jan 2020
The supplies were found Saturday in a warehouse in the city of Ponce, on Puerto Rico's southern coast. They included numerous pallets of water and other boxes with emergency supplies. The discovery took place as the US territory struggles with tremors and aftershocks from a December earthquake ... Gen ... "Most of the water here and baby formula is outdated....
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Puerto Ricans call for resignation of governor after Hurricane Maria supplies found in warehouse

Henry Herald 21 Jan 2020
Puerto Ricans poured into the streets of San Juan on Monday calling for the resignation of Gov ... They included numerous pallets of water and other boxes with emergency supplies. The discovery took place as the US territory struggles with tremors and aftershocks from a December earthquake ... Gen. Jos� J ... "Most of the water here and baby formula is outdated....
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Orlando Puerto Rican residents plan pot-banging protest against ‘government corruption’ Monday night

Orlando Weekly 20 Jan 2020
In response to the discovery Saturday of a warehouse full of untouched water and emergency supplies in the earthquake-damaged Puerto Rican city of Ponce, Central Florida ......
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