Plate Tectonics

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Across
  1. 2. Ash, cinder, rocks, gases, and bombs that are considered lava is termed this.
  2. 4. Last name of the man who developed the theory of continental drift.
  3. 7. Plate boundary where the plates move towards each other.
  4. 10. Last name of the man that developed the theory of seafloor spreading.
  5. 11. The measure of a material (lava or magma) resistance to flow.
  6. 14. Transform boundaries create this type of stress. Ridge: Divergent boundaries create this feature.
  7. 16. Type of currents that make continents move.
  8. 18. The thickest layer of the Earth.
  9. 19. The thinnest layer of the Earth.
Down
  1. 1. Plate boundary where the plates move away from each other.
  2. 3. Convergent boundaries create this type of stress.
  3. 5. This is where new seafloor is formed.
  4. 6. Divergent boundaries create this type of stress.
  5. 8. Transform boundaries create this feature.
  6. 9. This is where seafloor is destroyed.
  7. 12. One of the Earth's cores that is made of liquid.
  8. 13. Plate boundary where the plates slide against each other.
  9. 15. Convergent boundaries create this feature.
  10. 17. Found at convergent boundaries where ocean crust subducts.