Seismology

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Across
  1. 1. the scale to measure an earthquake
  2. 3. where two plates collide
  3. 7. the lightest part of the earths layers
  4. 8. the settling of the crust after an earthquake
  5. 10. most intense part of an earthquake
  6. 11. longest mountain range in the world
  7. 12. the asthenosphere lies ____ the lithosphere
  8. 14. a dense plate goes under a less dense plate
  9. 16. earths lithosphere is in how many pieces
  10. 17. how thick is the earths crust
  11. 18. one single supercontinent
  12. 19. place where two plates pull apart
Down
  1. 2. the most famous transform boundary
  2. 4. large pieces of the earths crust that move
  3. 5. scientist who discovered continental drift
  4. 6. what layer of the earth is semi-fluid
  5. 9. where two plates slide past each other
  6. 10. the sudden movement in the earths crust
  7. 13. theory that plates move due to convection currents
  8. 15. how many seconds does the average earthquake last