What is 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:

    A single monk carries his own bucket of water; two monks carry their bucket of water together; but when there are three monks, there is no water at all.
    Chinese proverb.

    it
    was my first doll that water went
    into and water came out of much
    earlier it was the diaper I wore
    and the dirt thereof and my
    mother hating me for it
    Anne Sexton (1928–1974)

    —the main jet
    Struggling aloft unti it seems at rest

    In the act of rising, until
    The very wish of water is reversed,
    Richard Wilbur (b. 1921)