Tectonic Plate Crossword

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Across
  1. 4. Lies above the inner core
  2. 8. Area of Earth between core and thin crust
  3. 9. Deep ridge under the surface of the ocean
  4. 10. Innermost layer of planet Earth
  5. 12. Plates come together
  6. 14. Plates spread apart
  7. 15. Theory that all the continents were one large land mass
  8. 17. Going back into the mantle
  9. 18. Process that occurs at mid-ocean ridges where new oceanic crust is formed through volcanic activity
Down
  1. 1. Area where there is motion of one plate next to each other
  2. 2. Crust broken into large pieces called tectonic plates
  3. 3. Uppermost layer of the oceanic portion of tectonic plates
  4. 5. Plates slide past each other
  5. 6. Located along mid-ocean ridges formed by divergent boundaries
  6. 7. Region of earth's atmosphere above stratosphere and below thermosphere
  7. 8. Seafloor mountain formed by plate tectonics
  8. 11. Theory that explains how continents shift position
  9. 13. Number of continental plates
  10. 15. Earth's lithosphere comprised by a number of large tectonic plates that slowly move
  11. 16. Upper layer of Earth's mantle, below lithosphere