Alfred Wegener and his Continenetal Drift Theory

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Across
  1. 4. what is earth's longest underwater mountain range?
  2. 6. boundary Where 2 plates slide past eachother in opposite directions
  3. 11. boundary Where 2 plates collide
  4. 13. who proposed the continental drift theory?
  5. 14. boundary Where 2 plates move away from eachother
  6. 15. how old was Alfred when he died?
  7. 17. what was the one thing that made everyone believe Alfred's theory
  8. 18. what date is 1880?
  9. 19. what was alfred Wegener?
Down
  1. 1. where the ocean floor sinks down into a trench and back into the mantle
  2. 2. the theory where all continents were joined together in a single landmass and have moved apart ever since
  3. 3. what other theory did alfred propose?
  4. 5. where did alfred die?
  5. 7. the supercontinent that Alfred named
  6. 8. what is the year 1930 in alfred's life.
  7. 9. what was alfred's wife's name?
  8. 10. what other type of scientist was alfred?
  9. 12. what was alfred on when he died?
  10. 15. true or false? everyone believed Alfred Wegener and his theory.
  11. 16. how many boundaries are there?
  12. 20. true or false? scientists today used Alfred's research to put together pieces over the continental drift