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.

Read more about Water.

Famous quotes containing the word water:

    The favor of a drop of water should be repaid as an overflowing spring.
    Chinese proverb.

    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)

    As must have rung the harvest-song of Linos
    Of bloody water in a heap of stones.
    Allen Tate (1899–1979)