plate tectonics

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Across
  1. 6. spot a stationary warm area
  2. 7. plates plates below the continents
  3. 9. tectonics earth's crust and upper mantle are broken into sections called plates
  4. 11. mid-oceanic ridges form from these
  5. 13. how many types of boundaries are there?
  6. 14. plastic layer below the lithopsphere
  7. 17. current hot magma moves towards the surface, cools, sinks again
  8. 19. forms from the friction of transform boundaries
Down
  1. 1. the earth's crust and upper mantle, earth's outer shell
  2. 2. ridges under water mountains
  3. 3. subduction zones happen here
  4. 4. mountains when 2 continental plates collide creates what?
  5. 5. zones where less dense plates slide under the more dense plates
  6. 8. lava erupting from the earth's surface
  7. 10. 2 plates that slide past each other cause friction, than an earthquake
  8. 12. 2 oceanic plates colliding
  9. 15. plates plates below the ocean
  10. 16. valleys a feature of divergent boundaries
  11. 18. do hot spots ever move?