restless earth

2. were tectonic plates slide past each other. causes earthquakes.
3. Deep, elongated depressions in the ocean aften acossiated with subduction zones
4. Formedt plte boundries usually when plates collide.
5. Tectonic plates move toward each other, usually forms mountains and volcanoes.
7. Forms after weathering and erosion when sediments compact and cement.
9. Includes the crust and upper part of the mantle, and it is divided into tectonic plates.
10. Extinction events that occur over a longer time period.
12. Name of the Ancient supercontinetal when it was all one landmass.
14. Fractures or zones of weakness in the Earth's crust
17. The semi-fluid layer of the mantle where convection currents happen.
19. Rock formed when lava or magma cools and hardens.
20. events that led up to a mass extinction.
21. used to measure and recorded seismic waves.

1. material rises, cooler materials sink. it drives plate tectonics.
6. Formed as a result of high temperature and pressure deep within earth changing a rock that already existed.
8. Tectonic plates move toward each other, usually forms a new crust and rift valleys.
11. Large, ridged pieces of the earths lithosphere that move and interact with each other along plate boundaries
13. AN opening in the Earth's crust through which molten rock is psuhed out and creates a new rock
15. New oceanic crust is formed as tectonic plates pull apart magma rises.
16. located between the mantle and outer core.
18. A group of the same species living in the same area.