Plate Tectonic Vocabulary Crossword

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Across
  1. 7. Hot semifluid material below the Earth's crust from which lava is formed
  2. 8. The point on the Earth's surface above the focus
  3. 10. The uppermost mantle and overlying the crust. It is a solid rigid layer
  4. 11. A crack in the Earth's crust
  5. 12. When the denser plate dives under the lighter plate
  6. 13. A current in the mantle where cooler, denser crust sinks and warmer, less dense material rises
  7. 14. When 2 plates move toward each other
  8. 15. Crust that is thinner and denser than continental crust
  9. 17. spreading When magma rises to the surface at mid-ocean ridges to form new oceanic crust
  10. 20. A liquid layer in the earth that is rich in iron
Down
  1. 1. Crust that is thicker and lighter than oceanic crust
  2. 2. When 2 plates spread apart
  3. 3. Mountain ridges along the ocean floor
  4. 4. When 2 plates are moving horizontally in opposite directions
  5. 5. Located in the upper mantle and is composed of hot, rocky material that is malleable
  6. 6. A solid layer in the earth that is rich in iron
  7. 9. The location where the earthquake happens
  8. 16. An instrument used to measure how large/long and earthquake is
  9. 18. A destructive event that results from geological processes
  10. 19. Hot regions of the Earth's mantle where magma rises by breaking through weak parts of the lithosphere