Aquatic Ecosystems

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Across
  1. 3. water ecosystem
  2. 5. living interacting with environment
  3. 8. surface of the sea floor
  4. 9. only 3% of water in the world
  5. 11. vary in size
  6. 12. shallow with sunlight
Down
  1. 1. high levels of salt
  2. 2. rivers keep coming
  3. 3. deep, deep in darkness
  4. 4. high tides and low tides
  5. 6. soil as a filter
  6. 7. one direction
  7. 10. fresh meets salty
  8. 11. shines bright for photosynthesis