Earths system

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Across
  1. 4. Rock formed when lava or magma cools and hardens
  2. 6. hot material rises, cooler materials sink. It drives plate tectonics
  3. 8. Sudden events that led to a mass extinction
  4. 9. located between the mantle and outer core
  5. 10. formed as a result of high temperatures and pressure deep changing rock that already existed
  6. 11. instuments used to measure the record seismic waves
Down
  1. 1. extinction events that occur over a longer time
  2. 2. Includes crust and upper part of the mantle, and is dived into tectonic plates
  3. 3. A group of the same species living in the same area
  4. 5. the semi-fluid layer of the mantle and the outer core
  5. 7. Forms after weathering and erosion and sediments compact and cement