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:
... consisting of fine 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) ...
... Subsidence may affect ecosystems, waterways, sewer and water supply systems, foundations, and so on ... out of the shale, oil 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 ...
... 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." ...
... the turn of the 20th century, synchronized swimming was known as water ballet ... the larger variety theatres 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 ...
... From 1901 to 1964, the litre was defined as the volume of one kilogram of pure water at 4 °C and 760 millimetres of mercury pressure ... at Sèvres in France and was intended 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 ...
More definitions of "water":
- (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): Supply with water, as with channels or ditches or streams.
Example: "Water the fields"
- (verb): Provide with water.
Example: "We watered the buffalo"
- (verb): Secrete or form water, as tears or saliva.
Example: "My mouth watered at the prospect of a good dinner"; "His eyes watered"
- (verb): Fill with tears.
Example: "His eyes were watering"
- (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.
- (noun): Liquid excretory product.
Example: "The child had to make water"
Synonyms: urine, piss, pee, piddle, weewee
- (noun): A fluid necessary for the life of most animals and plants.
Example: "He asked for a drink of water"
- (noun): Once thought to be one of four elements composing the universe (Empedocles).
Famous quotes containing the word water:
“Lord, crack their teeth! Lord, crush these lions jaws!
So let them sink as water in the sand;
When deadly bow their aiming fury draws,
Shiver the shaft ere past the shooters hand.
So make them melt as the dishoused snail”
—Bible: Hebrew Psalm LVIII (Paraphrased by the Countess of Pembroke)
“Ice is an interesting subject for contemplation. They told me that they had some in the ice-houses at Fresh Pond five years old which was as good as ever. Why is it that a bucket of water soon becomes putrid, but frozen remains sweet forever? It is commonly said that this is the difference between the affections and the intellect.”
—Henry David Thoreau (18171862)