Structures of Earth

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Across
  1. 6. hot material that flows from the top of a volcano
  2. 7. the plates that move the continental crust
  3. 11. a land form created when plates spread apart
  4. 13. thickest layer of the Earth
  5. 14. boundaries that pull apart
  6. 16. the solid, hottest layer of the Earth
  7. 17. the single land mass that all continents started as
Down
  1. 1. boundaries that crashes together
  2. 2. and area of raised land like a mountain
  3. 3. the outermost layer of the Earth
  4. 4. the liquid layer of the core made of iron and nickel
  5. 5. boundaries that slide and slip past each other
  6. 6. layer of the mantle that the continental plates sit on
  7. 8. liquid layer of the mantle that has convection
  8. 9. happens when two plates slide against each other
  9. 10. a line of seismic activity between two plates
  10. 12. one plate goes under a less dense plate
  11. 15. hot material that comes from the asthenosphere