Tectonics, Earthquakes and Volcanoes

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Across
  1. 1. A push-pull wave
  2. 3. The location of the surface directly above the focus
  3. 7. Deepest trench
  4. 9. Tectonics, Earthquakes and ____________
  5. 11. A zone of weak easily deformed rock in the upper mantle
  6. 14. When tectonic plates move together
  7. 17. Lava that is underground
  8. 18. Means "builder" in Greek
  9. 19. slow wave that travels only through solids
  10. 20. Winter, water, glaciers cause __________
  11. 23. The crust and the upper layer of the mantle make up this layer of rock
  12. 25. Most famous transform fault boundary
  13. 27. Largest tectonic plate
  14. 28. Plates move away from each other
Down
  1. 1. A large supercontinent containing all the Earth's continents
  2. 2. When tectonic plates slide past each other
  3. 4. Plates collide
  4. 5. A hot liquid that spills out of the volcano
  5. 6. The layer of the Earth found between the core and the crust
  6. 8. The measure of an earthquake
  7. 10. Most dangerous type of volcano
  8. 12. Plate that we live on
  9. 13. Slowest type of wave
  10. 15. The very middle layer of the Earth
  11. 16. Where the earthquake starts
  12. 21. drift
  13. 22. The layer of the Earth we live on
  14. 24. A sudden, violent, shaking of the ground
  15. 25. A type of volcano that is flat
  16. 26. Scale that measures the magnitude of earthquakes