The Water System

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Across
  1. 1. all living things need...
  2. 4. not clear; containing tiny specks of sediment or other solid matter
  3. 5. water can exist as a solid,liquid, and ...
  4. 8. the salinity of the dead sea allows swimmers to...
  5. 10. water that has been used or contaminated by human activity
  6. 12. a network of piped that transports dirty or used water
  7. 17. water dissolves many substances, including toxic...
  8. 18. water must be treated before it is safe to...
Down
  1. 1. an area surrounded by high land and drained by a river and its tributaries
  2. 2. water that contains feces and urine; also called sewage
  3. 3. water that has been used for cooking, laundry,bathing, or similar tasks
  4. 6. two hydrogen and one _________ make?
  5. 7. the sun provides the energy to drive water...
  6. 9. artificially raising the temperature (for e.g. water)
  7. 11. a substance used to provide nutrients to plants, usually for the purpose of increasing crop production
  8. 13. a measure of of the quantity of dissolved salt in water
  9. 14. water is clear,colourless, and has no...
  10. 15. rain ________ damage has coast the Canadian forestry industry hundreds of millions of dollars
  11. 16. water can be used in a sustainable...