Plate Tectonics by: Chloe H

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Across
  1. 4. Study of the alignment of magnetic in rocks
  2. 5. Mountains Formed when India began colliding with Asia
  3. 8. extinct land reptile that lived 250 million years ago
  4. 11. Theory on how litheshpere move and changes shape
  5. 13. where a denser tectonic plate into the Earth's mantle
  6. 15. Terranes may be small volcanic islands or underwater mountains
  7. 17. The center of the Earth
  8. 18. Super continent that formed 300 million years ago than began to break apart 250 million years ago
  9. 20. Process by which Earth's crust breaks apart
  10. 21. continents were formed in a single landmass
Down
  1. 1. Outer layer of Earth
  2. 2. Hot fluid within the Earth's crust
  3. 3. Plastic layer of the mantle beneath the lithosphere
  4. 6. Process when a terrane becomes part continent
  5. 7. The middle layer of earth
  6. 9. Tectonic plates move and shifts occur along the boundaries
  7. 10. Rocks within cratons that have been exposed at Earth's surface
  8. 12. Under sea montains chain that forms magma that rises from the asthenospere
  9. 14. Movement caused by heated materials due to a difference in density caused by differences in temperature
  10. 16. Large ocean coved Eaths surface during Pangaea
  11. 19. Piece of lithosphere that has a unique geologic history