Plate Tectonics

3. ‐ A huge ocean wave caused by a sudden, powerful shift on the ocean floor
5. where two plates slide against each other
7. ‐The border between two tectonic plates.
10. melted rock on Earth’s surface.
13. an area where two or more tectonic plates meet
15. the layer of Earth between the core and the crust
16. ‐ a large piece of the lithosphere that floats and moves on the asthenosphere
17. ‐A layer of the earth's crust that lies under the seven continents
19. is formed when very hot rock rises from the mantle and erupts through Earth’s crust.
20. a divergent boundary occurs where two plates

1. melted rock beneath Earth’s surface.
2. the solid outer part of Earth that includes the crust and upper mantle
4. ‐ Any of various instruments for measuring and recording the vibrations of earthquakes
6. ‐ The name given to the supercontinent that existed more than 225 million years ago
8. where one plate slides under another as the two are pushed together.
9. the outermost layer of Earth.
11. Zone ‐ An area where oceanic crust and continental crust are colliding.
12. ‐A crack or fracture in Earth's crust where two tectonic plates grind past each other horizontially
14. ‐ a slowly flowing layer of solid and melted rock formed by heat and pressure
18. plate ‐ a large piece of the lithosphere that floats and moves on the asthenosphere.