Tectonic Plates

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Across
  1. 5. The coast of South America seemed to fit into this continent
  2. 8. The deepest part of the ocean
  3. 9. Plate
  4. 14. Causes earthquakes
  5. 17. Places where the seafloor is forced under continental plates
  6. 18. The outer part of the earth’s crust
  7. 19. The separating of plates
  8. 20. Seafloor _____
Down
  1. 1. ____ Current
  2. 2. core The liquid layer of the Earth’s core
  3. 3. These were found to be the same on different continents even though there separated by oceans
  4. 4. Source of heat in the mantle
  5. 6. The most outer solid portion of the earth
  6. 7. Colliding Plates
  7. 10. The Earth’s ____ field reverses from time to time
  8. 11. Below the Earth’s crust
  9. 12. The Theory of Continental _____
  10. 13. The zone below the lithosphere
  11. 15. A break in the earth’s crust
  12. 16. Scientist who first proposed that thermal convection in the mantle causes continental drift