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The Importance of Water to Life September 7, 2007 Life as we know it can not exist without water. Seventy-five % of the Earth is covered in water providing an environment for organisms to live in. the water molecule is made up of two hydrogen atoms and one oxygen atom. As oxygen atoms are more electronegative that hydrogen atoms the electrons shared covalently between the oxygen and the hydrogen atoms tend to spend more time near the oxygen atom making it partially negative and making the hydrogen atoms partially positive. The partial charges in the water molecule allow it to form weak or hydrogen bonds with other water molecules. The hydrogen bonds between water molecules cause the water molecules other properties like cohesion, adhesion, surface tension, waters ability to retain heat, and its ability to dissolve polar or ionic substances. Cohesion and adhesion are some of water's unique properties....

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