techtonic theory

2. ‐The boundary that occurs where two plates are moving apart from each other.
6. ‐ A logarithmic scale, ranging from 1 to 10, for indicating the intensity of an earthquake
9. ‐ is formed when very hot rock rises from the mantle and erupts through Earth’s crust.
12. ‐ A transference of energy
13. ‐ a large piece of the lithosphere that floats and moves on the asthenosphere.
15. ‐ a long, narrow, deep area on the ocean floor that is formed at a convergent plate boundary.
17. ‐A dropped zone where two tectonic plates are pulling apart.
19. ‐ The point of origin of an earthquake
20. ‐ The distance from the center of a circle to any point on its circumference

1. ‐ the solid outer part of Earth that includes the crust and upper mantle.
3. ‐The border between two tectonic plates.
4. ‐ melted rock beneath Earth’s surface.
5. ‐ an area where two or more tectonic plates meet.
7. ‐The boundary that occurs where two plates are pushing toward each other.
8. ‐ melted rock on Earth’s surface.
10. ‐ Any of various instruments for measuring and recording the vibrations of earthquakes
11. ‐ The point on earth’s surface that is vertically above the focus of an earthquake.
14. ‐ a straight line of travel where data is being collected.
16. ‐The boundary that occurs where two plates slide past each other.
18. ‐ the outermost layer of Earth.