Water in all its forms

Water is a chemical compound with the chemical formula H2O. A water molecule contains one oxygen and two hydrogen atoms connected by covalent bonds. Water is a liquid at temperatures above 0 °C (273.15 K, 32 °F) at sea level, but it often co-exists on Earth with its solid state, ice, and gaseous state (water vapor or steam). Water also exists in a liquid crystal state near hydrophilic surfaces.
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Freshwater stream on a frozen beach in Troms,...
Freshwater stream on a frozen beach in Troms, Norway (by antonyspencer).
Glass House - Lake Abraham
Glass House - Lake Abraham, Alberta, Canada. Bubbles trapped and frozen under a thick layer of ice creating a glass type feel to the frozen lake // photo by Paul Christian Bowman, Jan 15, 2013