Restless Earth Vocabulary List

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Across
  1. 4. Formed t plate boundaries usually when plates collide
  2. 6. New oceanic crust is formed as tectonic plates pull apart and magma rises
  3. 9. Includes the crust and upper part of the mantle, and is divided into tectonic plates
  4. 12. Located between the mantle and the outer core
  5. 13. Rock formed lava or magma cools and hardens
  6. 15. Formed as a result of high temperature and pressure deep within earth changing a rock that already existed
  7. 17. Tectonic plates move away from each other, usually forms new crust and rift valleys
  8. 18. An opening in the Earth's crust through which molten rock is pushed out and creates new rock
  9. 20. Deep, elongated depressions in the ocean, often associated with subduction zones
  10. 21. Name of the ancient supercontinent when it was all one landmass
Down
  1. 1. Where tectonic plates SLIDE past each other. Causes earthquakes
  2. 2. A group of the same species living in the same area
  3. 3. Fractures or zones of weakness in the Earth's crust
  4. 5. Tectonic plates move toward each other, usually forms mountains and volcanoes
  5. 7. Extinction events that occur over a longer time period
  6. 8. The semi-fluid layer of the mantle where convection currents happen
  7. 10. Hot material rises, cooler materials sink. It drives plate tectonics
  8. 11. Forms after weathering and erosion when sediments compact and cement
  9. 14. Plates Large, rigid pieces of earth's lithosphere that move and interact with each other along plate boundaries
  10. 16. sudden events that led to a mass extinction
  11. 19. Instruments used to measure and record seismic waves