the earth

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Across
  1. 3. lava that has not gone through the crust.
  2. 9. the layer in witch convection currents are found.
  3. 11. a sound beam used to map the sea floor.
  4. 12. the rising and falling of materials in the mantle.
  5. 13. the layer that creates the magnetic field.
  6. 14. the land mass that existed 230 million years ago.
  7. 15. a molten runny state of matter.
  8. 16. molten rock that has exited the crust.
  9. 18. a theory or idea made by a scientist.
  10. 19. came up with the hypothesis of sea floor spreading.
Down
  1. 1. the person who came up with the hypothesis about Pangea.
  2. 2. the layer that reflects solar flares.
  3. 4. the outermost layer of the earth.
  4. 5. the solid innermost layer.
  5. 6. the crust on the sea floor.
  6. 7. the crust on the continents.
  7. 8. the force that keeps you in place.
  8. 9. the molten layer containing nickel and iron.
  9. 10. the layer the crust floats on.
  10. 17. the location on each end of the magnetic field.