Plate tectonics

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Across
  1. 2. A fracture in the Earth's crust where rocks have moved.
  2. 5. A shaking of the Earth caused by the release of energy.
  3. 7. A boundary where plates move apart, often creating mid-ocean ridges or rift valleys.
  4. 8. Current The movement of heat within the mantle that drives plate tectonics.
  5. 9. The soft, plastic layer beneath the lithosphere where plates move.
  6. 11. The outermost solid layer of the Earth, either oceanic or continental.
  7. 14. A boundary where plates collide, leading to subduction, earthquakes, or mountain building.
  8. 17. The rigid outer layer of the Earth, composed of the crust and upper mantle.
Down
  1. 1. An area where two or more tectonic plates meet.
  2. 3. The supercontinent that existed before the breakup of continents.
  3. 4. A boundary where plates slide past each other, causing earthquakes.
  4. 6. The layer beneath the Earth's crust, mostly solid but capable of flowing.
  5. 10. A chain of underwater mountains where new oceanic crust is formed.
  6. 12. A deep, narrow depression in the ocean floor formed by subduction.
  7. 13. An area where one tectonic plate slides under another.
  8. 15. An opening in the Earth's crust through which lava, gas, and ash erupt.
  9. 16. Wegener Scientist who first proposed the theory of continental drift.