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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Some articles on water:
... Subsidence may affect ecosystems, waterways, sewer and water supply systems, foundations, and so on ... operators force 1 to 9 million US gallons (34,000 m3) of water mixed with a variety of chemicals through the wellbore casing into the shale ... The high pressure water breaks up or "fracks" the shale, which releases the trapped gas ...
... was defined as the volume of one kilogram of pure water at 4 °C and 760 millimetres of mercury pressure ... to be of the same mass as the 1 litre of water referred to above ... Additionally, the mass-volume relationship of water (as with any fluid) depends on temperature, pressure, purity, and isotopic uniformity ...
... the turn of the 20th century, synchronized swimming was known as water ballet ... of London or Glasgow which were equipped with huge on-stage water tanks for the purpose ... After experimenting with various diving actions and stunts in the water, Katherine Curtis started one of the first water ballet clubs at the University of Chicago, where the ...
... Water is used in literature as a symbol of purification ... Sherlock Holmes held that "From a drop of water, a logician could infer the possibility of an Atlantic or a Niagara without having seen or heard of one or the other." ...
... granular material (such as sand or silt), clay, and water ... When water in the sand cannot escape, it creates liquefied soil that loses strength and cannot support weight ... Quicksand can be formed in standing water or in upwards flowing water (as from an artesian spring) ...
More definitions of "water":
- (verb): Supply with water, as with channels or ditches or streams.
Example: "Water the fields"
- (noun): Facility that provides a source of water.
Example: "The town debated the purification of the water supply"; "first you have to cut off the water"
Synonyms: water system, water supply
- (noun): Binary compound that occurs at room temperature as a clear colorless odorless tasteless liquid; freezes into ice below 0 degrees centigrade and boils above 100 degrees centigrade; widely used as a solvent.
- (verb): Secrete or form water, as tears or saliva.
Example: "My mouth watered at the prospect of a good dinner"; "His eyes watered"
- (noun): The part of the earth's surface covered with water (such as a river or lake or ocean).
Example: "They were sitting by the water's edge"
Synonyms: body of water
- (verb): Fill with tears.
Example: "His eyes were watering"
- (noun): Once thought to be one of four elements composing the universe (Empedocles).
- (noun): Liquid excretory product.
Example: "The child had to make water"
Synonyms: urine, piss, pee, piddle, weewee
- (verb): Provide with water.
Example: "We watered the buffalo"
Famous quotes containing the word water:
“Our star was brighter perhaps when it had water in it.
Now there is no question even of that, but only
Of holding on to the hard earth so as not to get thrown off,
With an occasional dream, a vision ...”
—John Ashbery (b. 1927)
“The water which supports a boat can also sink it.”
“A slight relax of air where cold was
And water trickles ...”
—Philip Larkin (19221986)