Restless Earth Vocab

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Across
  1. 6. Includes the crust and upper part of the mantle, divided into plate tectonics
  2. 7. Located between the mantle and outer core
  3. 8. name of the ancient super continent when it was all one landmass
  4. 10. Formed as a result of a high temperature and pressure deep within the earth changing a rock that already existed
  5. 12. The semifluid layer of the mantle where convection currents happen
  6. 15. formed at plate boundaries usually when plates collide
  7. 18. Extinction events that occur over a longer period of time
  8. 19. Sudden events that led to mass extinction
  9. 20. deep,elongated depressions in the ocean often associated with subduction zones
Down
  1. 1. tectonic plates move toward each other, usually forms mountains and volcanoes
  2. 2. where tectonic plates slide past each other causes earthquakes
  3. 3. Hot material rises, cool materials sink It drives plate tectonics
  4. 4. Rock formed when lava or magma cools or hardens
  5. 5. Tectonic plates move away from each other usually forms new crust and rift valley's
  6. 9. New oceanic crust is formed a tectonic plates pull apart and magma rises
  7. 11. Large Rigid pieces of the earth's lithosphere that move and interact with each other along plate boundaries
  8. 13. Forms after weathering and erosion when sediments compact and cement
  9. 14. A group of the same species living in the same area
  10. 16. fractures or zones of weakness in the earth's crust
  11. 17. an opening in the earth's crust through which molten rock is pushed out and creates new rock