Water is a common chemical substance that is essential for the survival of all known forms of life. In typical usage, water refers only to its liquid form or state, but the ...
http://en.wikipedia.org/wiki/Water

Water (H 2 O, H OH) is the most abundant molecule on Earth 's surface, composing of about 70% of the Earth's surface as liquid and solid state in addition to being found in the ...
http://en.wikipedia.org/wiki/Water_%28molecule%29

Bottled water delivery service in the United States. Company profile, facts and health benefits of drinking water.
http://www.water.com/

Regional Information Click on a region in the map to find regional water information. For more information, visit the Regional and State Links web page.
http://www.epa.gov/water/

All about water - the U.S. Geological Survey's Water Science for Schools information site. ... Welcome to the U.S. Geological Survey's (USGS) Water Science for Schools web site!
http://ga.water.usgs.gov/edu/