tectonic plates

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Across
  1. 2. it is below the lithosphere
  2. 4. the biggest plate
  3. 5. the first layer
  4. 8. long, narrow depressions on the seafloor that
  5. 10. the outer part of the core
  6. 11. the cause of convergent boundaries
  7. 12. hot liquid under the earths crust
  8. 15. when they move past each other
  9. 18. when one plate moves under another
  10. 19. when two tectonic plates move away from each other
Down
  1. 1. a sudden movement of materials within the Earth
  2. 3. the rigid outer part of the earth consisting of the crust and upper mantle.
  3. 5. the thickest layer
  4. 6. a famous super continent
  5. 7. when two tectonic plates bump into each other
  6. 9. when two tectonic plats push into each other
  7. 13. the mostly-solid bulk of Earth's interior
  8. 14. helps track plate movement
  9. 16. a fracture or zone of fractures between two blocks of rock
  10. 17. the inner part of the core