Water on Earth

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Across
  1. 6. shallow water areas of bays or the mouth of a river
  2. 8. a large storage area for water
  3. 9. 97 percent of all water on Earth
  4. 12. water is converted to vapor (gas)
  5. 14. the study of the history and structure of the earth
  6. 15. water not immediately absorbed by the ground
  7. 16. what humans must do with their water use
  8. 17. 1 percent of all water on Earth
Down
  1. 1. a low lying wetland
  2. 2. a body of water partially enclosed by land
  3. 3. the area of land where rain falls
  4. 4. diverting or moving water in order to use it
  5. 5. a very large expanse of salt water
  6. 7. a large floating mass of ice
  7. 10. an underground basin where water is stored
  8. 11. removing something from a substance
  9. 13. a long period with little or no rain