Plate tectonics

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Across
  1. 6. – Huge slab of Earth's lithosphere
  2. 8. – Plates slide past each other
  3. 10. – Outermost layer of the Earth
  4. 11. – Plates move apart
  5. 13. – Sudden shaking of the ground
  6. 15. – Crack in Earth's crust
  7. 16. you like me to turn these into a crossword puzzle grid with a picture, like the earlier ones?
Down
  1. 1. – Plates move toward each other
  2. 2. – Underwater mountain chain
  3. 3. – One plate goes under another
  4. 4. – Layer beneath the crust
  5. 5. – Center of the Earth
  6. 7. – Ancient supercontinent
  7. 9. – Molten rock beneath the surface
  8. 12. – Mountain that erupts lava
  9. 14. – Deep valley at subduction zones