Water is essential to life. In fact, water covers 80% of the surface of our planet and over 60% of the human body consists of water. Water is essential for children and adults alike to stay healthy and well. But how much water should kids drink?

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The Role of Water in the Human Body

Perhaps the most commonly thought of part of the human body that involves water is blood, which carries oxygen and nutrients throughout the body as well as helping the body rid itself of waste products. The body also uses water for:

• Sweat, which the body produces to keep itself cool.
• Urine and bowel movements, which rid the body of harmful substances and byproducts.
• Expelling humidity out of the lungs when people "breathe out."

Most of the chemical reactions that the human body must perform require water.

Basically, without enough water, the human body would soon be unable to function properly.