Continental Drift

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Across
  1. 5. plates of lithosphere sink into the
  2. 10. similar mountain ranges across the world
  3. 12. belt Continents are pushed by oceanic crust like they are on a
  4. 13. crust that rises through the ridge
  5. 15. Fossil of seed fern
  6. 17. crust moves away from the ridge
  7. 18. Continental Drift theory
Down
  1. 1. measure ground shaking
  2. 2. divided into plates
  3. 3. rises up into the mid-ocean ridges
  4. 4. New lava pushes the seafloor
  5. 6. Seafloor Spreading theory
  6. 7. asthenosphere is the upper part of the mantle
  7. 8. is named for the continent or ocean basin it contains
  8. 9. earthquakes are found in lines around the edges of some
  9. 11. lithosphere moved by underlying hot mantle
  10. 14. point on Earth's surface directly above where an earthquake happens
  11. 16. Fits into Africa like a puzzle