Crossword Puzzle: Chapter 1, Lesson 2: Surface Water

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Across
  1. 2. what pulls tributaries as they flow toward a main river
  2. 4. what a lake turns into when it fills up during the eutrophication process
  3. 6. the ridge of land that separates one watershed from another
  4. 9. what a river and all the streams and smaller rivers that flow into it are called
  5. 13. the land area that supplies water to a river system
  6. 14. another name for a watershed
  7. 15. released when lake organisms die and bacteria bread down their bodies
Down
  1. 1. what streams and smaller rivers that feed into a main river are called
  2. 3. runs off farmland and increases the speed of eutrophication
  3. 5. this type of lake forms when a new channel cuts off a river bend
  4. 7. the process of nutrients building up in a lake over time
  5. 8. a lake that stores water for human use
  6. 10. this is blocked out when algae grow into a thick layer on the top of a lake
  7. 11. the direction that streams on either side of a divide flow
  8. 12. this body of water is smaller and shallower than a lake