Plate Tectonics
Across
- 1. Scientist who proposed the idea of seafloor spreading
- 6. The primary force that causes the seafloor to spread and continents to drift
- 7. Plate ____________
- 8. The theory of continental _________
- 9. Places where new seafloor is being created
- 12. Seafloor ____________
- 13. The deepest parts of the oceans
- 15. The zone below the lithosphere. It is more "plastic" than the lithosphere so it is easier to bend and move
Down
- 2. ____________ zones. Places where the seafloor is forced under continental plates
- 3. The Earth's ___________ field reverses from time to time
- 4. The most outer, solid portion of the planet Earth
- 5. Section of the Earth below the crust
- 10. Alfred Wegener noticed that the coast of South America seemed to fit into the coast of this continent, just like a jigsaw puzzle
- 11. Scientist who first proposed the theory that the continents drifted
- 12. A device that scientists use to map the ocean floor
- 14. Paleontologists noticed that these were the same on different continents even though the continents were separated by oceans