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:

    “But sound of water over a rock
    Where the hermit-thrush sings in the pine trees
    Drip drop drip drop drop drop drop
    But there is no water”
    —T.S. (Thomas Stearns)

    “It is by teaching that we teach ourselves, by relating that we observe, by affirming that we examine, by showing that we look, by writing that we think, by pumping that we draw water into the well.”
    —Henri-Frédéric Amiel (1821–1881)

    “All water has a perfect memory and is forever trying to get back to where it was.”
    —Toni Morrison (b. 1931)