Plate Tectonic

2. At a subduction zone, a sequence of volcanoes erupted.
4. Underground movement along a fault plane caused by volcanic activity causes tremors and vibrations at the earth's surface.
7. A plate boundary is formed when two plates move in opposite directions past one other.
8. A volcano arises when magma surfaces at a weak area in the midst of a tectonic plate (ex: Hawaii & Yellowstone)
10. A crack in the earth's Surface
12. The concept that continents have migrated and continue to move slowly across the globe.
14. Subduction is going place beneath the seafloor in a deep linear depression.
15. Sections of the Earth's crust sliding to lower heights
17. Convection and plastic flow are thought to occur in the upper layer of the earth's mantle, below the lithosphere, where there is relatively low resistance to plastic flow.
18. The downward displacement of a block of the earth's surface between nearly parallel faults or fault systems creates a vast elongated depression with steep sides.
19. Two plates collide, come together, or crash into one other at a tectonic plate boundary.

1. The line that separates two tectonic plates that are drifting apart.
3. As plates move apart from one other along mid-ocean ridges, a new sea floor is created.
5. Rock is compressed until it folds or breaks as a result of the stress.
6. The point at which oceanic plates collide with the asthenosphere.
9. The idea that the lithosphere is divided up into enormous plates that travel about before reuniting.
10. a bending of rock strata, often caused by plate movement
11. On top of the asthenosphere, a section of the lithosphere that travels about.
13. the point where two plates collide
16. The ascent of parts of the Earth's crust to greater heights