Plate Tectonics

12345678910111213141516171819202122
Across
  1. 2. The longest mountain chain in the world
  2. 5. This type of plate boundary forms folded mountains
  3. 8. This type of boundary forms trenches and volcanoes
  4. 10. This type of boundary contains both collision and subduction boundaries
  5. 11. Mount Saint Helens, part of this mountain range, erupted in 1980
  6. 13. This boundary forms fault lines
  7. 14. This boundary type forms when plates move apart
  8. 15. Harry Hess's theory
  9. 16. This hot spot lies in the Pacific Ocean
  10. 18. The tallest folded mountains in the world
  11. 20. These occur at ALL plate boundaries
  12. 21. The deepest feature in the world
  13. 22. Iceland is a hot spot that lies along this feature
Down
  1. 1. The Nazca and S. American plates form this feature
  2. 3. A theory that precedes plate tectonics
  3. 4. Wegener's evidence for continental drift
  4. 6. This plate subducts under North America in the Pacific Northwest
  5. 7. These are present at ALL divergent boundaries and subduction boundaries
  6. 9. This feature formed by a continental-continental divergent boundary
  7. 12. These form when two continental plates converge
  8. 17. This feature causes severe earthquakes in California
  9. 19. This technology was used to map the seafloor