TECTONICS

5. the mostly-solid bulk of Earth's interior.
6. the region of transition from the land to the deep seafloor
7. a geological process that takes place at convergent boundaries.
9. two tectonic plates move away from each other
11. "the movement of ______ plates."
13. the outermost layer that is found under the oceans.
15. semi-fluid material below earth's crust that comes out as lava.
17. a rupture in the crust that allows hot lava to escape to the surface.
18. rigid outer part of the earth, consisting of the crust and upper mantle.
19. semi-fluid material below or within the earth's crust

1. a massive, irregularly shaped slab of solid rock.
2. a system of ideas intended to explain something
3. an astronomical body orbiting a star.
4. the substance of the land surface; soil.
7. the movement of the plates that make up Earth's crust.
8. a type of fault in which two tectonic plates slide past one another.
10. the outermost layer of Earth's lithosphere that makes up the planet's land.
12. two plates are moving towards each other
14. when rock underground suddenly breaks along a fault.
16. significant displacement as a result of rock-mass movement.