Plate motion

5. a diagram that shows what the inside of something looks like
7. Is met with in excavation, which is of such size or position that it can be removed only by means of special rock breaking equipment or other special plant or explosives.
8. to examine in detail for a purpose
10. an underwater mountain range formed when two plates move apart
15. The place where two plates meet
16. An identifiable event during which one or more geological processes act to modify geological entities.
18. layer of soft, solid rock underneath earths plates
20. something we observed to be repeating over and over again

1. study the materials, processes, and history of the Earth.
2. a natural feature of the earth's surface.
3. the remains or impression of a prehistoric organism preserved in petrified form or as a mold or cast in rock.
4. earthquakes caused by magma movement, gas emissions, effusive emissions of lava, and cataclysmic eruptions.
6. A very large section of hard, solid rock that makes up earths outer layer
9. A sudden shaking of earths surface
11. moving apart in different directions
12. moving towards the same place
13. Speed, the rate of change of position, or the change of position per unit of time.
14. set of things that are interconnected in ways that result in the generation of identifiable behavioral patterns over time.
17. a layer made of hard solid rock
19. A long deep indentation in the ocean floor formed when two plates move together