Restless Earth Vocab
Across
- 2. includes crust and upper part of the mantle and is divided int tectonic plates
- 5. formed as a result of high temperature and pressure deep within earth changing a rock that already existed
- 7. an opening in the earth's crust through which molten rock is pushed out and creates new rock
- 8. rock formed when lava or magma cools and hardens
- 12. large rigid pieces of earths lithosphere that move and interact with each other along plate boundaries
- 14. a group of the same species living in the same are
- 16. formed at plate boundaries usually when plates collide
- 18. forms after weathering and erosion when sediments compact and cement
- 19. fractures or zones of weakness in the earths crust
- 21. tectonic plates move away from each other usually forms new crust and rift valleys
Down
- 1. located between the mantle and outer core
- 3. extinction events that occur over a longer period of time
- 4. tectonic plates move away from each other usually forming mountains and volcanoes
- 6. hot material rises cooler material sinks driving plate tectonics
- 9. the semi fluid layer of the mantle where convection currents happen
- 10. where tectonic plates slide past each other causing earthquakes
- 11. new oceanic crust is formed as tectonic plates pull apart and magma rises
- 13. name of the super continent when it was all one landmass
- 15. instruments used to measure and record seismic waves
- 17. deep elongated depressions in the ocean often associated with subduction zones
- 20. sudden events that led to mass extinction