Water

Water

Water is a chemical substance 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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Famous quotes containing the word water:

    We wished our two souls
    might return like gulls
    to the rock. In the end,
    the water was too cold for us.
    Robert Lowell (1917–1977)

    Our star was brighter perhaps when it had water in it.
    Now there is no question even of that, but only
    Of holding on to the hard earth so as not to get thrown off,
    With an occasional dream, a vision ...
    John Ashbery (b. 1927)

    When peaceful clouds were reflected in the paddies
    and the water buffalo stepped surely along terraces,
    maybe fathers told their sons old tales.
    When bombs smashed those mirrors
    there was time only to scream.
    Denise Levertov (b. 1923)