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:
“The water for which we may have to look
In summertime with a witching wand,
In every wheelrut’s now a brook,
In every print of a hoof a pond.”
—Robert Frost (1874–1963)
“Panache upon panache, his tails deploy
Upward and outward, in green-vented forms,
His tip a drop of water full of storms.”
—Wallace Stevens (1879–1955)
“To get wealth and security by guile
Is like one who pours water into a pot of unbaked clay.”
—Tiruvalluvar (c. 5th century A.D.)