Tsunami

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Across
  1. 5. away from the place sth started
  2. 8. pieces of the Earth’s crust
  3. 12. the rate at which sth moves
  4. 13. huge piece of land under the sea falling away from another piece
  5. 14. to move gently in small waves (of water)
  6. 15. death
  7. 16. the place where two tectonic plates meet
  8. 17. a small smooth stone
  9. 18. a natural movement of sea water but at great speed
  10. 19. to destroy; to level
  11. 20. first
Down
  1. 1. the place where the sea meets the land
  2. 2. the force of one thing hitting another
  3. 3. all the plants and animals that live in an area and their relationship to each other in the food chain
  4. 4. to come away from the coast
  5. 6. over a wide area or involving lots of people/things
  6. 7. to use a lot of strength to move sth
  7. 9. in the way of another thing
  8. 10. activity during which a volcano explodes
  9. 11. a large amount of destruction
  10. 12. to move smoothly over sth