tectonic crossword

1234567891011121314151617181920
Across
  1. 3. a deep hole in the sea floor usually caused by plate subduction
  2. 8. the soft, flexible upper layer of the mantle on which the tectonic plates move
  3. 10. a mountain range in the ocean
  4. 12. the process of a tectonic plate going under another
  5. 16. hot flowing liquid below the earth's surface
  6. 18. upper layer of the mantle, below the lithosphere
  7. 19. the layer of earth on the outside
  8. 20. a rigid outer part of the earth, consisting of crust and mantle
Down
  1. 1. the jigsaw puzzle pieces that make up the crust
  2. 2. the science and study of rocks
  3. 4. land feature that is created when magma exits the crust and turns into lava
  4. 5. the layer of earth between the crust and the outer core
  5. 6. when tectonic plates move away from each other
  6. 7. spreading the process of new crust being formed from a gap in tectonic plates
  7. 9. when tectonic plates scrape past each other
  8. 11. the natural disaster that occurs when two tectonic plates interact
  9. 13. when tectonic plates move towards each other
  10. 14. the most famous super continent
  11. 15. plate boundary the place where tectonic plates meet
  12. 17. bottom of the ocean