Earth Vocab List

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Across
  1. 4. Located between the mantle and outer core
  2. 5. Formed when plates at boundaries collide
  3. 8. A Sudden event that leads to mass extinction
  4. 9. deep Elongated depressions in the ocean
  5. 11. Fracture zones of weakness in Earth's crust
  6. 13. A group of the same species that live in an area
  7. 16. An Extinction events that occurs over a longer time period
  8. 17. The semi fluid layer of the mantle where convection currents happen
  9. 19. forms after weathering and erosion when sediments compact and cement
  10. 20. Instruments used to measure and record seismic waves
Down
  1. 1. when plates move towards each other usually farming mountains and volcanoes
  2. 2. Rock formed when lava or magma cools or burns
  3. 3. An opening in the Earth's crust where molten rock comes out and makes new rocks
  4. 6. Hot material rises and cooler material sinks. it drives plate tectonics.
  5. 7. plates The large rigid pieces of the lithosphere
  6. 10. name of the super continent that was once, Earth's landmass
  7. 12. Includes The crust and upper part of the mantle
  8. 14. Formed as a result of high temperature and pressure deep within Earth changing a rock that already existed
  9. 15. When Plates slide past each other causing events like an earthquake.
  10. 18. When plates move away from each other usually forms new crusts
  11. 21. New oceanic crust is formed when plates pull and magma rises.