Chapter 9

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Across
  1. 3. : the landmass may split into two or more smaller segments
  2. 6. : created the continental drift hypothesis
  3. 7. : supercontinent
  4. 12. : concentration of heat in the mantle able to produce magma
  5. 13. : motion of matter from changes in temperature
  6. 15. : fossil organism found on different landmass
  7. 16. : plates that move apart
  8. 18. : the uppermost part of the mantle
  9. 19. : oceanic plate is forced into the mantle beneath a second one
Down
  1. 1. : continental exists in the form of several mountain belts
  2. 2. : when rocks show the opposite magnetism as the field
  3. 4. : produces new oceanic lithosphere
  4. 5. : the overlying crust behave as a strong, rigid layer
  5. 8. : two plates that come together
  6. 9. : natural remnant magnetism in rock bodies
  7. 10. : two plates that grind past each other
  8. 11. : continents elevated zones on the floor of ocean basins
  9. 14. : masses of hotter-than-normal mantle material
  10. 17. : one numerous rigid section of the lithosphere
  11. 20. : when rocks show the same magnetism as the present field