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:
“No speed of wind or water rushing by
But you have speed far greater.”
—Robert Frost (1874–1963)
“The Indian navigator naturally distinguishes by a name those parts of a stream where he has encountered quick water and forks, and again, the lakes and smooth water where he can rest his weary arms, since those are the most interesting and more arable parts to him.”
—Henry David Thoreau (1817–1862)
“I am no Poet here; my pen ‘s the spout,
Where the rain water of my eyes run out,
In pity of that name, whose fate wee see
Thus copied out in griefs Hydrography:
The Muses are not Mer-maids, though upon
His death the Ocean might turn Helicon”
—John Cleveland (1613–1658)