Geology Crossword Puzzle

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Across
  1. 2. Mountain created by volcanic activity
  2. 4. Outer layer of Earth
  3. 6. Hot spot where magma reaches Earth's surface
  4. 9. Tectonic plate boundary where plates pull apart
  5. 11. Type of earthquake waves that move through solids and liquids
  6. 12. Liquid layer surrounding Earth's inner core
  7. 13. Term for large landmasses formed by Earth's tectonic activity
  8. 17. Layer of Earth composed of iron and nickel
  9. 20. The process by which one tectonic plate is forced under another
  10. 21. Seismic waves that travel through solids only
  11. 25. Theory that Earth's continents were once joined
  12. 28. Large, destructive ocean wave caused by underwater disturbance
  13. 29. Supercontinent before it split apart
  14. 31. Scientist who developed the theory of plate tectonics
Down
  1. 1. Boundary where two plates collide
  2. 3. Term for Earth's crust and upper mantle
  3. 5. Volcano type known for explosive eruptions
  4. 7. A geological feature formed by divergent plate boundaries
  5. 8. Long crack in Earth's crust where movement occurs
  6. 10. Earth's layer responsible for tectonic movements
  7. 14. Type of volcano formed by gentle eruptions
  8. 15. Earthquake's point of origin beneath the surface
  9. 16. Violent shaking of the Earth's surface
  10. 18. The study of Earth's physical structure
  11. 19. Solid, innermost layer of Earth
  12. 22. Fault line in California known for earthquakes
  13. 23. Plate boundary where plates move apart
  14. 24. Volcanic eruption's release of molten rock
  15. 26. Plate boundary where plates slide past each other
  16. 27. A natural disaster caused by seismic activity
  17. 30. Volcanic material ejected from a volcano