Earth Systems

2. name of the ancient supercontinent when it was all one landmass
3. fractures or zones of weakness in the Earth's crust
6. extinction takes longer to form
9. rock formed when lave or magma cools
11. tectonic plates that move away from each other
12. events before mass extinction
14. where tectonic plates slide past each other
15. located between the mantle and outer core
16. formed at plate boundaries usually when plates collide
17. the semi-fluid layer of the mantle
20. formed as a result of high temperature and pressure deep within earth changing a rock that already existed
21. a group of the same species

1. large, rigid pieces of the earth's lithosphere
4. an opening in the earth's crust through which molten rock is pushed out and creates new rock
5. hot material rises, cooler materials sink, it drives plate tectonics.
7. forms after weathering and erosion when sediments compact and cement.
8. new oceanic crust is formed as tectonic plates pull apart and magam rises.
10. tectonic plates move toward each other
13. deep, elongated depressions in the ocean, often associated with subduction zones.
18. instruments used to measure seismic waves
19. includes the crust and upper part of the mantle