cams geologist

3. Ridge a mountain range that forms on the ocean floor along a divergent boundary
5. movement caused within a fluid by the tendency of hotter and therefore less dense material to rise
7. a section of Earth’s lithosphere
10. tectonic the movement of Earth’s crust
11. volcano that has erupted during recorded history,
12. the distance measured on Earth’s surface north or south of the equator
13. earthquake a sudden movement of plates within Earth’s crust

1. Boundary The area along an edge of Earth’s plates.
2. Drift one big continent that broke up and moved around
4. Of Fire the volcano and earthquake epicenters that seemingly circle the Pacific Ocean
5. Shelf usually less than 200 meters deep
6. the distance measured on Earth’s surface east or west of the prime meridian
8. the study of earthquakes
9. volcano that is not presently erupting but is likely to in the future