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