Plate Tectonics Crossword

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Across
  1. 2. the tecnology invented in the 1950s and 60s that helped give evidence of continental drift theroy
  2. 6. a ring of volcanoes around the Pacific plate
  3. 9. the pieces of the lithosphere that drift around
  4. 11. the number of miles thick the average tectonic plate is
  5. 12. the theroy that says that tectonic plates drift
Down
  1. 1. the process of a fluid moving up and down due to heat
  2. 3. the supercontinent that our current continents come from
  3. 4. the layer of earth we live on
  4. 5. the supercontinent composed of Europe and Asia
  5. 7. the crust and upper mantle
  6. 8. the layer of Earth that causes tectonic plates to move
  7. 10. the area of a tectonic plate above water