Restless Earth Vocabulary List

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