Plate techtonics

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Across
  1. 3. Large body of saltwater separating continents
  2. 4. Earth’s thin outer layer that we live on
  3. 6. Heat transfer through waves, not direct contact
  4. 7. The science that studies Earth’s materials and processes
  5. 8. A boundary where plates slide past each other
  6. 11. Heat transfer when two things touch
  7. 13. The planet we live on
  8. 14. Thick layer of hot rock below Earth’s crust
  9. 16. Melted rock
  10. 17. When plates pull apart
  11. 18. The line where two tectonic plates meet
Down
  1. 1. Earth’s center, made of very hot metal
  2. 2. Type of crust that forms the continents
  3. 4. Movement of heat in the mantle that makes plates move
  4. 5. A place where two tectonic plates move away from each other
  5. 9. Deep valleys in the ocean where one plate sinks under another
  6. 10. Soft, partly melted layer the plates slide on
  7. 12. A mountain that can erupt lava
  8. 14. High landforms created when plates push together
  9. 15. The inside layers of Earth