Plate Tectonics

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Across
  1. 3. major tectonic plate that includes much of the continent of Africa
  2. 6. Thin plates that form the ocean floor; more dense than continental plates.
  3. 9. An opening in the Earth's crust through which lava, ash, and gases erupt.
  4. 12. Major tectonic plate which includes the continent of South America.
  5. 13. A supercontinent containing all of Earth land.
  6. 15. A theory stating that the earth's surface broken into plates that move.
  7. 16. A German scientist
  8. 18. Oceanic tectonic plate that lies beneath the Pacific Ocean.
  9. 19. moving or extending in different directions from a common point.
  10. 20. One plate going under another plate
Down
  1. 1. The hypothesis that states that the continents once formed a single landmass, broke up, and drifted to their present.
  2. 2. Is the mostly-solid bulk of Earth's interior.
  3. 4. tectonic plate containing the continent of Antarctica.
  4. 5. Change with time of the position or orientation of a body.
  5. 7. Very hot, very dense center of our planet
  6. 8. Tectonic Plate covering most of North America Cuba, the Bahamas.
  7. 10. Deep valley in the ocean floor
  8. 11. The edges of tectonic plates.
  9. 14. A plate boundary where two plates move toward each other.
  10. 17. tectonic plate that includes most of the continent of Eurasia.