kabby

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Across
  1. 2. this explains how the ____ moves.
  2. 3. of Ridges called _____.
  3. 4. and valleys like those found on the continents.
  4. 5. fossils of a _____ have been found in south America.
  5. 7. boundary when two plates are moving apart its called a ______ ______
  6. 8. if new crust is being added to one location, it _________ below the
  7. 14. earths magnetic poles has ______ itself many times throughout
  8. 15. similar _____ structures are found on different countries.
  9. 17. strips ______ to the mid-ocean ridges
  10. 18. prospered the term ___________ drift.
  11. 19. boundaries ______ ______ occur when two plates slide past one another.
  12. 22. Scientists discovered an underwater system of ______, or
  13. 24. waves German scientists introduced _____ _____ to detect
Down
  1. 1. fossils of a ______ has been found in Africa and India.
  2. 2. Wegener used continental drift to explain changing ____.
  3. 3. during WWI.
  4. 6. this is why his ______ was initially rejected.
  5. 9. zone this forms a _____ ___.
  6. 10. scientists now knew that sections of the seafloor and continents
  7. 11. at another
  8. 12. Ridge in the Atlantic, the pacific, and other oceans are a
  9. 13. Seafloor Spreading)
  10. 16. The magnetic alignment in the rocks reverses back and forth over time
  11. 18. boundary this occurs where two plates move together at a ______ ______.
  12. 20. they move in the ______ directions or in the same directions at different rates
  13. 21. in ______ to one another.
  14. 23. Floor Harry Hess proposed the theory of ____ ___.