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