Earth Science crossword

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Across
  1. 1. continent-sized slab that move slowly across the Earth's Surface
  2. 5. device that records vibrations in Earth
  3. 7. destructive force that breaks down rocks into smaller pieces
  4. 10. a scientific theory that the earths crust is made up of moving plates
  5. 11. small ridge of land used not let a body water overflow
  6. 12. layer beneath mantle believed to be made up of nickel and iron
  7. 15. building up of land/landforms
  8. 16. melted rock inside Earth
  9. 19. large mass of ice that moves over land and leaves distinctive features
  10. 20. mound of piled sand by wind
  11. 21. layer beneath crust, believed to be slightly molten and solid rock
  12. 23. The surface that makes the top of the lithosphere,includes continents and ocean floor
  13. 24. structure that is built over a river to control its flow
Down
  1. 2. the movement of weathered rock place to place
  2. 3. the braking down of land/landforms
  3. 4. a crack in Earth's crust
  4. 6. a movement in Earth's crust
  5. 8. deposit of sediment in a river's mouth
  6. 9. opening in Earth's crust that spews lava,ash and gases
  7. 13. system of drains that prevents flooding during rainstorms
  8. 14. dropping of sediment or particles by water,wind and ice
  9. 17. structure built at right angles to the beach to control beach erosion
  10. 18. sand,silt and other small particles
  11. 22. melted rock that reaches Earth's surface