Plate Tectonics
Across
- 2. the relatively thin part of the earth's crust which underlines the ocean basins
- 4. the bending of rock layers
- 6. boundary between two colliding plates
- 7. theory that continents drift apart
- 11. the circulation of material caused by differences in temperature and density
- 14. capable of being molded or changing shape without breaking
- 16. boundary between two plates that are sliding past each other
- 17. as a slab sinks, it pulls on the rest of the plate with a force
- 18. layer between the crust and the core
- 20. a region where an oceanic plate sinks down into the athenosphere
- 21. the solid mineral material forming part of the surface of the earth and other similar planets, exposed on the surface or underlying the soil or oceans
Down
- 1. piece of the lithosphere that moves on the asthenosphere
- 3. new lithosphere is created here
- 5. boundary between two plates moving away from each other
- 8. a pulling force
- 9. outer most, rigid layer of the Earth
- 10. rising mantle material at mid-ocean ridges creates the potential for plates to move away from the ridge with a force
- 12. outermost layer of the earth
- 13. a break in the Earth's crust
- 15. a squeezing force
- 19. layer of the mantle