Water can dissolve many chemicals and can exist in all threestates of matter: solid, liquid, and gaseous, within thetemperature range known on Earth.Water is essential for life on Earth.All life forms have a membrane that separates the organism fromits environment.Water passes from the environWater cycle in natureWater exists on or near the Earth's surface in a state of constantchange between its three states.Water is constantly moving from one place to another throughmany different paths that form a nearly closed system called thewater cycle in nature or the hydrological cycle and