Water is a colorless, transparent, odorless, tasteless liquid that forms the seas, lakes, rivers, and rain. It is the basis of the fluids of living organisms. About 75% of Earth is covered with water, Only 3% of the Earth's water can be used as drinking water. It takes 25 to 50 gallons of water to take a shower. A person can only live a week without water. Water freezes at 32 degrees Farenheit and 0 degrees Celsius.