Water

H2O

Functions of water

helps with..

-digestion, absorption, and transportation of nutrients

-elimination of wastes through the kidneys, colon, and lung

-distributing heat throughout the body and allowing heat to be released through the skin by evaporation

-lubricating joints and cushioning body tissues

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Acrostic Poem

W ithout water, you can only survive a few days

A bsorption is helped by water

T hroughout the body it distributes heat

E ssential nutrient

R eleases heat through skin by evaporation

Sources of water

Rainwater, oceans, rivers, lakes, streams, ponds and springs are natural sources of water. Dams, wells, tube wells, hand-pumps, canals, etc, are man-made sources of water.

What happens if you drink too much or too little water

When a person begins to dehydrate more things happen in the body than just being thirsty. The more liquid in the body that is lost, the thicker the blood becomes and the harder the heart muscle must work to pump the blood through the circulatory system. When a person loses their abilities to reason and think straight because of dehydration it means they will die very soon, unless they drink water to rehydrate. Depending on the circumstances, mainly environment, a person can die within 24 to 28 hours after having no water if they are laboring in the hot dry sun with no water. If a person is sedentary indoors and the elements, such as wind, sun, and heat is not present they may live up to 3 days, tops.In rare cases, drinking an extreme amount in a short time can be dangerous. It can cause the level of salt, or sodium, in your blood to drop too low. That's a condition called hyponatremia.It's very serious, and can be fatal. You may hear it called water intoxication.

Interesting facts

-Water is made up of two elements, hydrogen and oxygen. Its chemical formula is H2O.

-Roughly 70 percent of an adult’s body is made up of water.

-Water intoxication is most likely to occur during periods of intense athletic performance.

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