Water is found all over the earth. In fact, about seven-tenths of the earth's surface is water! All living things need water. Your body is about two-thirds water.
Ancient peoples thought water was an element, but it is not. Water is a compound of the elements hydrogen and oxygen. Both of these elements are gases at ordinary earth temperatures. In 1784, Henry Cavendish fund that hydrogen combined with oxygen to produce water. a few years later, scientists learned that a st
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