Plate tectonic

2. - The solid outer layer of the Earth that consists of the crust and the rigid upper part of the mantle
3. - The thin and solid outermost layer of the Earth, above the mantle
7. Boundary - The boundary between tectonic plates that are sliding past each other horizontally.
8. _ stress that occurs when forces act to stretch and object
9. tectonics - The theory that explains how the tectonic plates move and change shape.
10. - A break in a body of rock along which one block slides relative to another
13. - The layer of rock between the Earth's crust and core
14. - The bending of rock layers due to stress
16. - The soft layer of the mantle on which the tectonic plates move
17. - The rising of regions of the Earth's crust to higher elevations

1. Boundary - The boundary formed by the collision of two lithospheric plates.
3. Drift - The hypothesis that states that the continents once formed a single landmass, broke up, and drifted to their present locations
4. Boundary - The boundary between two tectonic plates that are moving away from each other
5. - The stress that occurs when forces act to squeeze an object
6. - The strong lower part of the mantle between the Asthenosphere and the outer core
11. plates - A block of lithosphere that consists of the crust and the Ridgid outermost part of the mantle
12. - The central part of the Earth below the mantle
15. floor spreading -The process by which new oceanic lithosphere form as magma rises toward the surface and solidifies