Tectonic Plates

3. zone, A __________ __________ is a convergent boundary where an oceanic plate is pushed beneath a continental plate forming a trench. The oceanic crust melts resulting in the formation of volcanoes.
5. When oceanic crust melts it can result in the formation of a __________.
6. When two continental plates collide large __________ will usually form.
9. Divergent boundaries cause oceans to grow __________.
10. Ridge, The __________-__________ __________ is an example of a divergent boundary.
13. At a __________ plate boundary, new crust is created as two or more plates pull away from each other.
14. plates, like pieces of a puzzle
15. boundary, The plate boundary where two tectonic plates move away from one another.
17. ridges, Underwater mountain ranges where the crust is spreading apart creating new ocean floor.
18. The __________ mountain range was formed from the collision of the Indian plate colliding into the Eurasian plate.
19. Earthquakes often occur at __________ lines.
20. Currents, A circulation pattern in which material is heated and rises in one area then cools and sinks in another area, flowing in a continuous loop
21. a place where two tectonic plates meet.

1. A region where oceanic plates sink down.
2. Tectonic Theory, theory that Earth's lithosphere is divided into.
4. boundaries, The boundary where two tectonic plates meet and push into one another.
7. Transform boundaries (faults) cause __________.
8. When a divergent boundary occurs on land a __________, or separation, will arise and over time, that mass of land will break between them.
11. There are __________ major tectonic plates.
12. When oceanic plates collide with continental plates a __________ will form between the two plates.
16. floor spreading, The process by which new oceanic lithosphere is created.