Plate Tectonics and Continental drift

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Across
  1. 3. similar_______ found on different continents supported the theory of continental drift
  2. 8. theory that all of the continents were once a large landmass and have slowly moved to their current location
  3. 9. ________current movement of matter resulting in differences in density
  4. 11. this boundary occurs when tectonic plates slide past one another
  5. 12. thinnest, least dense compositional layer
  6. 13. block of lithosphere that consists of crust and outermost part mantle
Down
  1. 1. structural layer in which tectonic plates are found
  2. 2. this boundary occurs when tectonic plates are moving away from each other
  3. 4. layer that convection currents occur in
  4. 5. this boundary results when tectonic plates collide
  5. 6. Last name of the scientist responsible for continental drift theory
  6. 7. name of the supercontinent
  7. 9. a type of climatic evidence created by tropical plants
  8. 10. matching ___________ _________ and rock age was another piece of evidence