Restless Earth Vocab
Across
- 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
Down
- 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