Continental Drift Review

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Across
  1. 1. continents fit together like _______ pieces
  2. 7. the upper layer of the earth's mantle
  3. 9. the layer of Earth where convection happens
  4. 12. the theory states that the plates are always moving
  5. 13. the scientist who came up with continental drift
  6. 14. currents are found in the mantle and cause the plates to move
  7. 15. the outmost layer of the Earth
  8. 16. evidence of dead plants and animals
Down
  1. 2. The rigid outer part of the earth consisting of the crust and upper mantle
  2. 3. Wegner needed _________ to support his theory
  3. 4. ___________ ranges lining up was a strong piece of evidence that supports Wegener's theory
  4. 5. Wegner believed that all continents were once joined together but drifted apart over time
  5. 6. the name of Wegner's supercontinent
  6. 8. The Earth is made up of _______ ______ which are constantly moving along above the mantle
  7. 10. this continent matches up with south America
  8. 11. continental drift theory states that the continents move very _______ over long periods of time