Earth's Systems

1. Fractures or zones of weakness in the Earth's crust
6. formed at plate boundaries usually when plates collide.
7. Name of the ancient supercontinent when it was all one landmass.
8. Formed as a result of high temperature and pressure deep within earth changing a rock that already existed.
15. Deep, elongated depressions in the ocean, often associated with subduction zones.
16. instruments used to measure and record seismic waves.
18. Sudden events that led to a mass extinction.
20. tectonic plates SLIDE past each other. Causes earthquakes.
21. An opening in the Earth's crust though which molten rock is pushed out and creates new rock.

2. Includes the crust and upper part of the mantle, and is divided into tectonic plates.
3. Hot materials rises, cooler materials sink. It drives plate tectonics.
4. Extinction Events that occur over a longer time period.
5. located between the mantle and the outer core.
9. tectonic plates move toward each others, usually forms mountains and volcanoes.
10. new oceanic crust is formed as tectonic plates pull apart and magma rises.
11. Large, rigid pieces of the Earth's lithosphere that move and interact with each other along plate boundaries.
12. The semi-fluid layer of the mantle where convection currents happen.
13. A group of the same species living in the same area.
14. tectonic plates move away from each other, usually forms new crust and rift valleys.
17. Forms after weathering and erosion when sediments compact and cement.
19. Rock formed when lave or magma cools and hardens.