Across
- 3. the layer of rock between earths crust and core
- 5. rising of regions of earts crust to higher elevations
- 7. the strong lower part of mantle between asthenosphere and outer core
- 9. drift the hypothesis that states that continents once formed a single landmass broke up and drifted to their present locations
- 10. the central part of earth below the mantle
- 11. the solid outer layer of earth that consists of the crust and rigid upper part of mantle
- 12. boundary the boundary formed by the collision of two lithospheric plates
- 14. a break in a body of rock along which one block slides relative to another
- 15. single large landmass made up of all the continents connected together that broke apart 200 million years ago
- 16. boundary the boundary between two tectonic plates that are moving away from each other
- 18. floor spreading the process by which new oceanic lithosphere forms as magma rises toward the surface and solidifies
Down
- 1. boundary the boundary between tectonic plates that are sliding past each other horizontally
- 2. tectonics the theory that explains how large pieces of earths outermost layer called tectonic plates move and change shape
- 4. the sinking of regions of earths crust to lower elevations
- 6. the soft layer on which the tectonic plates move
- 8. the bending of rock layers due to stress
- 9. stress that occurs when forces act to squeeze an object
- 12. the thin and solid outermost layer of Earth above the mantle.
- 13. plate a block of lithosphere that consists of the crust and rigid outermost par of mantle
- 17. stress that occurs when forces act to stretch an object