Restless earth vocab

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Across
  1. 1. rock formed from high temp and pressure
  2. 3. located between the mantle and outer core
  3. 5. new oceanic crust through which molten rock is pushed out and creates new rock
  4. 6. extinction that occurs over a long time
  5. 10. large rigid pieces of the earths lithosphere that move and interact with each other along plate boundaries
  6. 12. a group or species living in the same area
  7. 13. tectonic plates slide past each other. causes earthquakes
  8. 15. tectonic plates move away from each other. usually forms ew crust and rift valleys
  9. 17. crust and upper part of mantle divided into plates
Down
  1. 2. sudden events that led to a mass extinction
  2. 4. hot material rises, cooler sinks. drives plate tectonics
  3. 7. the semi-fluid layer of the mantle where convection currents happen
  4. 8. rock formed when lava or magama cools or hardens
  5. 9. instruments used to measure and record seismic waves
  6. 11. tectonic plates move towards each other. forms mountains and volcanoes
  7. 14. fractures or zones of weakness in the earths crust
  8. 16. deep elongated depressions in the ocean often associated with subduction zones
  9. 18. rock formed after weather and erosion when sediments compact