water systems

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Across
  1. 3. natural satellite covered by ice
  2. 4. underground layer of rock
  3. 6. water that falls into soil
  4. 8. water can pass through
  5. 10. easy to identify
  6. 15. where the rainwater ends up
  7. 16. water found in streams, lakes...
  8. 17. mass of ice
  9. 18. small narrow river
  10. 20. water cycle
Down
  1. 1. hard to identify
  2. 2. h2o
  3. 5. water can not pass through
  4. 7. ability of a material to absorb heat
  5. 9. small localized climate
  6. 11. two watershed in between a hill
  7. 12. the state of the atmosphere
  8. 13. strong winds
  9. 14. water without salt
  10. 19. destructive vortex