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:
“What’s water but the generated soul?”
—William Butler Yeats (1865–1939)
“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.
“Cities give not the human senses room enough. We go out daily and nightly to feed the eyes on the horizon, and require so much scope, just as we need water for our bath.”
—Ralph Waldo Emerson (1803–1882)