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