Restless Earth Vocab

4. Extinction events that occur over a longer time period
6. Large, rigid pieces of the Earth's lithosphere that move and interact with each other along plate boundaries
8. Name of the ancient supercontinent when it was all one landmass
11. A group of the same species living in the same area]
12. Sudden Events That Led To Mass Extinction
15. Formed as a result of high temperature and pressure deep within the earth changing a rock that already existed
16. Includes the crust and upper part of the mantle, and is divided into tectonic plates
17. Hot material rises, cooler materials sink. It drives plate tectonics
18. Forms after weathering and erosion when sediments compact and cement
19. An opening in the Earth's crust through which molten rock is pushed out and creates new rock
20. Where tectonic plates slide past each other. Causes Earthquakes
21. Fractures or zones of weakness in the Earth's crust

1. Tectonic plates move away from each other, usually forms new crust and rift valleys
2. Instruments used to measure and record seismic waves
3. The semi-liquid layer of the mantle where convection currents happen
5. New oceaninc crust is formed as tectonic plates pull apart and magma rises
7. Located between the mantle and the outer core
9. Formed at plate boundaries usually when plates collide
10. Deep, elongated depressions in the ocean, often associated with subduction zones
13. Rock formed when lava or magma cools and hardens
14. Tectonic plates move toward each other, usually forms mountains and volcanoes