Science

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Across
  1. 4. Transform: Dextral transform. Sinistral transform.
  2. 7. A deep valley that forms where two plates move apart.
  3. 8. The theory that the Earth's crust and upper mantle
  4. 9. a fissure in the earth's crust through which gases erupt
  5. 10. The continents we see today are fragments of that supercontinent
  6. 12. movement of the edge of one tectonic plate under another.
  7. 13. any long ditch cut in the ground. volcano. a fissure in the earth's crust
  8. 14. A deep depression in the ocean floor caused by the convergence
  9. 16. The uppermost division of the solid earth,
  10. 17. system of connected underwater mountain ranges
  11. 19. occurs when two tectonic plates move away from each other.
  12. 20. movement of plat techonics
Down
  1. 1. process that occurs at mid-ocean ridges
  2. 2. hypothesis of continents used to be Pangea
  3. 3. A mantle is a layer inside a planetary body bounded below by a core and above by a crust
  4. 5. putty like layer
  5. 6. study of magnetic fields recorded in rocks, sediment, or archeological materials
  6. 11. vibration from underground
  7. 15. the act of applying force
  8. 18. a specialist in the history of the Earth recorded in rocks