Layers and tectonic plates

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Across
  1. 1. a scientific term for the mantle of the earth
  2. 5. the third layer of the Earth's atmosphere
  3. 7. the layer before the crust
  4. 9. a crack in the Earth's crust where stress from a plate is released
  5. 10. a boundary where plates slide past each other and do nothing to the crust
  6. 13. the part before the mantle that is in the core
  7. 14. the reason there is no supercontinent anymore
  8. 15. the center of the earth
  9. 17. the chemicals that make Earth's layers
  10. 18. a scientific term for the crust of the earth
Down
  1. 2. the theory that earth is split into a lot of different sections
  2. 3. a boundary where to plates allow magma to rise and then make new crust
  3. 4. a boundary where plates collide
  4. 6. the large plates that are the cause of earthquakes and volcanic activity
  5. 7. the strength of the lithosphere and anthenosphere
  6. 8. when tectonic plates go apart so magma rises and makes new crust
  7. 11. when the pressure of 2 plates causes it to shorten or thicken
  8. 12. a place on earth where plates are likely to slide under each other
  9. 16. the outer layer of the earth