River

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Across
  1. 2. a pool of liquid (such as water, lava, oil or pitch)
  2. 3. the line between one river basin and the other
  3. 7. the channel occupied by a river
  4. 9. the geological process in which earthen materials are worn away and transported by natural forces such as wind or water
  5. 11. where a river meets the sea
  6. 13. where the river starts
  7. 14. flat land beside river that may flood
  8. 17. a small river
  9. 18. a deep, narrow valley with steep sides
  10. 19. an overflowing of water onto land
  11. 20. smaller river join the main river
Down
  1. 1. a curve in a river
  2. 4. a place where groundwater flows out of the ground
  3. 5. a stream of water that flows through a channel in the surface of the ground
  4. 6. a place where water flows over the edge of a steep, high cliff in hills or mountains, and fall into a pool below
  5. 8. the geological process where material is added to a land or a landform
  6. 10. land above the edge of a river
  7. 12. the points where two rivers meet
  8. 15. where the river flows into a lake or a sea
  9. 16. landform created by deposition of sediment, carried by a river