GEO: Plate Tectonics Major Project - Option #1
Across
- 4. The bottom/ground of the ocean
- 6. What were the continents doing in the Continental Drift theory
- 8. A boundary between two colliding plates
- 10. What Ocean do most Earthquakes occur
- 13. The study of the structure of the Earth's surface
- 15. Who came up with the Continental Drift Theory
- 16. How many volcanoes are in the Ring of Fire
- 18. What was the supercontinent named
- 19. How many years ago did the Plate Tectonic theory get proposed
- 20. Ground vibrations caused by Earth's crust moving
Down
- 1. A cycle of Heating, Rising, Cooling and Sinking
- 2. What new theory answered the question on HOW the coninents moved
- 3. What continent fits nearly perfectly with South America
- 5. The bottom of a deep ocean below the continental shelf
- 7. A type of tough volcanic rock
- 9. What's the lowest layer
- 11. How many plates is the earth made up of
- 12. What percentage of Earthquakes occur in the Ring of Fire
- 14. What year was the Continental Drift theory proposed
- 17. Where do most Volcanoes occur