Air pressure . the higher you go up the less air pressure the lower you go down  the more air pressure there is .
Water vapor is water  in the air .In  science court I learned that if you boil water then put food coloring into it then let it boil for a little more  then pour  through the pipes and the  water that has the food coloring in it  will come out clear.
Water cycle the cycle of water that goes through  the geosphere , atmosphere &hydrosphere.
Monday, November 24, 2008
science
Posted by megan at 2:38 PM
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