Water

Water is a transparent, tasteless, odorless, and nearly colorless chemical substance, which is the main constituent of Earth's streams, lakes, and oceans, and the fluids of most living organisms. It is vital for all known forms of life, even though it provides no calories or organic nutrients. Its chemical formula is H₂O, meaning that each of its molecules contains one oxygen and two hydrogen atoms connected by covalent bonds. Water is often called the "universal solvent" for its ability to dissolve many substances. This property is essential to life. Water also covers 70.9% of the Earth's surface, and is vital for all known forms of life. On Earth, it is found mostly in oceans and other large water bodies, with 1.6% of water below ground in aquifers and 0.001% in the air as vapor, clouds (formed of solid and liquid water particles and ice crystals), and precipitation. Water moves continually through the water cycle of evaporation, transpiration (evapotranspiration), condensation, precipitation, and runoff, usually reaching the sea. Water is a polar inorganic compound that is at room temperature a tasteless and odorless liquid, which is nearly colorless apart from an inherent hint of blue that can become a noticeable turquoise in large quantities. Being a good solvent, of high heat capacity, a thermal conductor and a major chemical constituent of numerous cellular processes, water is an essential part of all known forms of life. Water in Hebrew is מַיִם (pronounced mayim), in Arabic ماء (pronounced mā' or māʾ), in French eau, in German Wasser, and in Spanish agua.