Plate tectonics

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Across
  1. 1. ‐ An area where oceanic crust and continental crust are colliding
  2. 5. when an oceanic plate sinks underneath a
  3. 8. one plate going under another
  4. 10. a slowly flowing layer of solid and melted rock formed by heat and pressure
  5. 12. melted rock on Earth’s surface
  6. 13. molten hot rock
  7. 14. collide
  8. 17. the outermost layer of Earth.
  9. 18. A dropped zone where two tectonic plates are pulling apart
  10. 20. the solid outer part of Earth that includes the crust and upper mantle
  11. 21. The process that forms new ocean floor and oceanic crust
Down
  1. 2. The border between two tectonic plates
  2. 3. It is the only liquid layer, a sea of mostly iron and nickel
  3. 4. The type of crust lying under the oceans of the world
  4. 6. separate
  5. 7. A raised area or mountain range under the oceans formed
  6. 9. two tectonic plates grind past each other in a horizontal direction
  7. 11. continents were joined together in one large landmass
  8. 15. two plates slide against each other
  9. 16. A layer of the earth's crust that lies under the seven continents
  10. 19. The innermost layer of the earth, an extremely hot, solid sphere of mostly iron and nickel