Fresh Water & Marine Systems

1234567891011121314151617181920
Across
  1. 2. lakes form from rainfall in craters
  2. 5. stage 2 of river system
  3. 7. when a lake naturally turns over
  4. 9. plant like organism
  5. 11. stage 3 of river system
  6. 14. standing water
  7. 15. stage 4 of river system
  8. 17. plains stage 5 of river system
  9. 19. stage 6 of river system
  10. 20. type of fresh water system
Down
  1. 1. stage 1 of river system
  2. 3. stage 7 of river system
  3. 4. strong swimmers
  4. 6. limiting factor
  5. 8. organism
  6. 10. running water
  7. 12. deep low lakes
  8. 13. shallow area along edge of a lake
  9. 16. characterized by trees
  10. 18. characterized by grasses