science

2. the rising of regions of the earth’s crust to higher elevations
4. a break in a body of rock along which one block slide relative to another
5. the thin and solid outermost layer of the earth above the mantle
8. stress that occurs when forces act to squeeze an object
9. the solid, outer layer of the earth that consist of the crust and the rigid upper part of the mantle
11. boundary: the boundary between tectonic plates that are sliding past each other horizontally
13. the strong, lower part of the mantle between the asthenosphere and the outer core
14. boundary: the boundary between two tectonic plates that are moving away from each other
15. boundary: the boundary formed by the collision of two lithospheric plates
18. floor spreading: the process by which new oceanic lithosphere forms as magma rise toward the surface and solidify
19. the central part of the earth below the mantle

1. the layers of rock between the earth’s crust and core
3. plate: a block of lithosphere that consist of the crust and the rigid, outermost part of the mantle
6. the bending of rock layers due to stress
7. the soft layer of the mantle on which the tectonic plates move
10. the sinking of regions of the earth’s crust to lower elevation
12. drift: the hypothesis that states that the continents once formed a single landmass, broke up, and drifted to their present locations
16. stress that occurs when forces act to stretch an object
17. tectonics: the theory that explains how large pieces of the earth outermost layer, called tectonic plates, move and change shape