Watershed/ Surface Water

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Across
  1. 1. zone that is unsaturated
  2. 3. when water cannot pass through
  3. 7. water that runs off becomes…
  4. 9. only 3% of earth's water is…
  5. 10. what forms at the end of a river?
  6. 12. top of the zone of saturation
  7. 17. the higher ground between two drainage basins
  8. 18. where is the Santee delta?
  9. 20. zone that is full of water
  10. 21. another name for watershed
  11. 22. largest US delta
  12. 23. largest east coast delta
  13. 24. what must be dug below the water table?
Down
  1. 2. underground pocket of permeable rocks with water
  2. 3. where is most freshwater trapped?
  3. 4. water that is polluted contains…
  4. 5. an area of land where water is drained the same way
  5. 6. what happens to water that passes through soil?
  6. 8. what drains a watershed?
  7. 11. deltas have ____ ecosystems
  8. 13. when water moves through soil
  9. 14. what soil horizon is impermeable?
  10. 15. water that does not go into the ground
  11. 16. what watershed do we live in?
  12. 18. what chemical is found in 97% of the earth's water?
  13. 19. farms need water