rapid earth vocab list

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