Saturday 7 May 2011

WHAT IS WATER?

  1. It is a chemical substance with the formula H2O (2 hydrogen and 1 oxygen atoms),
  2. It exists in three states; solid (ice), liquid (water) and gas (water vapour),
  3. It is a colourless, transparent, odorless, tasteless liquid that forms seas, lakes, rivers, and  rain, 
  4. It is essential to all living things,
  5. It is the most abundant liquid on earth (covers 70% of earth's surface),
  6. It makes up 57%-70% of human body weight.





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