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.
Some articles on water:
... 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 ...
... Subsidence may affect ecosystems, waterways, sewer and water supply systems, foundations, and so on ... 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 ...
... 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) ...
... At 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 team ...
... defined as the volume of one kilogram of pure water at 4 °C and 760 millimetres of mercury pressure ... held at Sèvres in France and was intended to be of the same mass as the 1 litre of water referred to above ...
More definitions of "water":
- (noun): A fluid necessary for the life of most animals and plants.
Example: "He asked for a drink of water"
- (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): Once thought to be one of four elements composing the universe (Empedocles).
- (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"
- (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): Fill with tears.
Example: "His eyes were watering"
- (verb): Supply with water, as with channels or ditches or streams.
Example: "Water the fields"
- (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
Famous quotes containing the word water:
“We were uncertain whether the water floated the land, or the land held the water in its bosom. It was such a season, in short, as that in which one of our Concord poets sailed on its stream, and sung its quiet glories.”
—Henry David Thoreau (18171862)
“If theres water in the big rivers, the small rivers will be full.”
“I asked, What happens, father, when you die?
He told where all the running water goes,
And dressed me gently in my little clothes.”
—Robert Pack (b. 1929)