Plate Tectonics

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Across
  1. 2. A location where magma rises through the crust away from plate boundaries
  2. 7. The shaking of Earth's surface caused by the sudden movement of tectonic plates
  3. 9. A deep valley formed at a divergent boundary on land
  4. 11. A theory that explains the movement of Earth’s lithospheric plates
  5. 15. Mountains formed when rocks are compressed at convergent boundaries
  6. 17. When one plate sinks under another at a convergent boundary
  7. 22. A famous transform fault in California
  8. 24. A supercontinent that existed millions of years ago when all continents were joined
  9. 26. The force of a sinking plate pulling the rest of the plate with it
  10. 28. A plate boundary where two plates move away from each other
  11. 31. The process of new oceanic crust forming at mid-ocean ridges
  12. 32. The scientist who proposed the theory of continental drift
  13. 33. The idea that continents were once joined and have slowly moved apart
  14. 34. A plate boundary where two plates slide past each other
  15. 35. A curved chain of volcanic islands caused by oceanic-oceanic subduction
Down
  1. 1. The circular motion in the mantle that drives plate movement
  2. 3. A landform formed when magma reaches Earth's surface, often at convergent boundaries
  3. 4. A deep ocean valley formed at a subduction zone
  4. 5. Patterns on the ocean floor showing Earth's magnetic field reversals
  5. 6. A mountain range formed by continental-continental convergence
  6. 8. A major area in the Pacific Ocean known for frequent earthquakes and volcanoes
  7. 10. A soft, flowing layer of the mantle that tectonic plates move on
  8. 12. Large pieces of Earth’s lithosphere that move on the asthenosphere
  9. 13. The amount of mass in a given volume; affects subduction and convection
  10. 14. A plate boundary where two plates move toward each other
  11. 16. The thin outermost layer of Earth
  12. 18. A dense, solid layer of metal at Earth's center
  13. 19. A break in Earth's crust where movement has occurred
  14. 20. A liquid layer made of iron and nickel that creates Earth's magnetic field
  15. 21. The thick, hot layer of rock beneath Earth's crust
  16. 23. Island arc formed at an oceanic-oceanic convergent boundary
  17. 25. An underwater mountain range formed by divergent plates
  18. 27. The rigid outer layer of Earth made up of the crust and upper mantle
  19. 29. Technology used to measure the movement of tectonic plates
  20. 30. Mountains formed at an oceanic-continental convergent boundary