Plate Tectonics
Across
- 2. Earths crust and upper mantle are broken into sections
- 5. Less dense than oceanic crust
- 7. They occur when hot magma, solids,and gas erupt onto Earths surface
- 9. Cycle of heating, rising, cooling, and sinking
- 11. All land
- 12. Theory that combined continental drift and seafloor spreading
- 13. Plates that move or pull apart from each other
- 17. When rock breaks and moves along surfaces
- 18. The crust and upper mantle are combined
Down
- 1. Plates that come together or collide
- 3. Continents have slowly moved to their current locations
- 4. Thin layer in comparison to other three layers
- 6. Plates that slide past each other
- 8. Rock, basalt under the ocean
- 10. Plastic like layer below the lithosphere
- 14. Largest layer of the Earth
- 15. Portion of the Earths crust that lies beneath ocean waters
- 16. A movement of the ground that occurs when rocks inside the Earth break suddenly
- 19. Oceanic crust is destroyed