Plate Tectonics and Earth's Interior

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Across
  1. 3. Outer layer of Earth composed of thin hard rock
  2. 6. Thick dense layer of rock under the crust
  3. 7. Earth's only liquid layer
  4. 8. Created when one plate slides under another plate
  5. 11. An example of a divergent boundary
  6. 12. A supercontinent that existed millions of years ago that consisted of all present continents
  7. 14. States that continents have moved slowly into their present locations
  8. 17. The plastic-like layer of Earth below the lithosphere
  9. 18. Plates below continents
  10. 20. A German meteorologist who presented the theory of continental drift in 1912
Down
  1. 1. An example of a subduction zone
  2. 2. Made up of the crust and upper part of upper mantle
  3. 4. Boundary between two plates that are sliding past each other
  4. 5. Magma in the Earth rises when hot and sinks when cool
  5. 9. Boundary between two plates that are moving towards each other
  6. 10. Boundary between two plates that are moving away from each other
  7. 13. An example of a convergent boundary
  8. 15. An example of a transform boundary
  9. 16. Plates below oceans
  10. 19. Innermost layer of Earth composed of solid iron and nickel