Earth layers/Tectonic plates crossword puzzle

12345678910111213141516171819
Across
  1. 4. made of the upper mantle and crust.
  2. 5. the part theta is liquid metal iron and nickel.
  3. 8. causes earthquakes.
  4. 10. theory that came after the idea of continental drift.
  5. 12. the hottest part of the earth.
  6. 14. When the oceanic plate goes under the continental plate.
  7. 16. made of the lower mantle.
  8. 18. Idea proposed by Alfred Wegner.
  9. 19. when waves are together in one spot.
Down
  1. 1. This layer is below the lithosphere.
  2. 2. Makes mountains/subduction zones.
  3. 3. the plates that float on top of asthenosphere.
  4. 6. when 2 plates move AWAY from each other.
  5. 7. the thickest layer of the earth.
  6. 9. Idea proposed by Harry Hess.
  7. 11. the thinnest layer of the earth.
  8. 13. solid ball of metal inside the earth.
  9. 15. classified by how the layers they move and behave
  10. 17. A crack in the earth created by transform boundary.