Unit 1: Earth Science and Soil

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Across
  1. 2. winds blow in different directions due to the Earth spinning on an axis
  2. 3. ____ weathering: manually breaking apart rock
  3. 7. plates are sliding past one another
  4. 10. ____ crust is younger, thinner and more dense so it doesn't float well
  5. 11. loss of top soil
  6. 12. theory that states the universe expanded from a singular particle
  7. 14. plates are pulling apart
  8. 16. layers of soil
Down
  1. 1. thin layer of gasses held together by gravity
  2. 4. ____ crust is older, thicker, and less dense so it floats better
  3. 5. plates are slamming together
  4. 6. _____ currents push plates slowly over the magma in the mantle
  5. 8. ____ weathering: bacteria breaks down rock through physical and chemical processes
  6. 9. water's ability to move through soil
  7. 13. decomposed organic material that gives soil dark color
  8. 15. ____ weathering: something dissolves or weakens minerals holding rock particles together