Lentic Systems

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Across
  1. 4. act of being cleaned by passing through
  2. 6. America's largest wetland
  3. 7. hold much of the fresh water on Earth
  4. 9. little to no life because no nutrients
  5. 11. water that is a mix of fresh and salt
  6. 13. life sustaining substance
  7. 14. many trees and shrubs fed by rain
  8. 16. filled with many grasses
  9. 18. seasonal change in a lake that flips it
Down
  1. 1. area of land with a shallow layer of water
  2. 2. a large lentic system with life around the edges
  3. 3. a small lentic zone with great amounts of life
  4. 5. often filled with moss and evergreen trees
  5. 6. ecosystem of fresh and salt water mixed
  6. 8. holds water for human use
  7. 10. a lake created from a cut-off meander
  8. 12. nutrient build up creates algae
  9. 15. how acidic or basic a substance is
  10. 16. trees with roots that can grow in water
  11. 17. water that is not moving or moving slowly