water

Water is a chemical substance with the chemical formula H2O. It is a clear, colorless, odorless, and tasteless liquid that is essential for all forms of life. Water is made up of two hydrogen atoms and one oxygen atom and is a major component of the earth's hydrosphere. It is found in rivers, lakes, oceans, and underground, and it is also present in the atmosphere in the form of vapor. It is used for many things like drinking, irrigation, industrial processes, and recreation. Water is also a critical component of the earth's climate system and plays a role in regulating temperature and weather patterns. It can be found in 3 states: solid (ice), liquid and gas (water vapor).