Restless Earth Vocab

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Across
  1. 4. new oceanic crust is formed as tectonic plates pull apart and magma
  2. 6. Sudden events that led to a mass extinction
  3. 7. Located between the mantle and the outer core
  4. 9. where tectonic plates SLIDE past each other. causes earthquakes
  5. 13. Includes the crust and upper part of the mantle, and is decided into tectonics
  6. 14. formed as a result of high temperature and pressure deep within Earth changing a rock that already existed
  7. 18. An opening in the Earth's crust through which Multan rock is pushed out and creates new rock
  8. 19. Extinction events that occur over a longer period of time
  9. 21. Large, rigid pieces of Earth's lithosphere that move and interact with each other along plate boundries
Down
  1. 1. The semi-fluid layer of the mantle where convection currents happen
  2. 2. tectonic plates move toward each other, usually forms mountains and volcanoes
  3. 3. Forms after weathering and erosion when sediments compact and cement
  4. 5. tectonic plates move toward each other, usually forms new crust and rift valleys
  5. 8. Name of the ancient supercontinent when it was all one landmass
  6. 10. Fractures or zones of weakness in Earth's crust
  7. 11. Hot material rises,cooler material sink. It drives plate tectonics
  8. 12. deep, elongated depressions in the ocean, often associated with abduction zones
  9. 15. formed at plate boundaries usually when plates collide
  10. 16. Instruments used to measure and record seismic waves
  11. 17. A group of the same species living in the same area
  12. 20. Rock formed when lava or magma cools and hardens