Cool science

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Across
  1. 3. solid, outer part of the earth
  2. 8. a geological process
  3. 10. largest layer
  4. 12. 1 percent of the earth
  5. 14. force that squeezes something together
  6. 16. two substances mixed together
  7. 18. boundary plates move away from each other
  8. 19. boundary plates slide sideways past each other
  9. 20. boundary when two plates come together
Down
  1. 1. portion of the earth's mantle
  2. 2. properties involve a reaction to an applied load
  3. 4. tectonics theory made by Alfred Wegner
  4. 5. the highest layer of the atmosphere
  5. 6. core hot, metal ball made of iron
  6. 7. zone locations on earth
  7. 9. cracks in the earth
  8. 11. drift movement of tectonic plates
  9. 13. plates slabs of rock
  10. 15. center of the earth
  11. 17. core layer that is 1300 miles thick