Layers of the earth and plate tectonics!

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Across
  1. 4. part of the crust that is mostly made up of graphite and is less dense
  2. 5. liquid part of the core made from uranium
  3. 7. the process that gives the plates to move like a conveyor belt
  4. 8. there are this many layers of the earth
  5. 12. increases as depth increases
  6. 13. solid part of the core made of mostly iron and nickel
  7. 14. part of the crust that is made up of basalt and is more dense
  8. 16. boundaries that move away from each other
Down
  1. 1. the original super continent
  2. 2. a zone of the mantle that flows like hot lava and plates "float" on
  3. 3. boundaries that move toward each other and smash into one another
  4. 6. a zone made up of the crust and the upper mantle
  5. 9. boundaries that move past each other
  6. 10. thinnest layer of the Earth
  7. 11. thickest layer of the Earth
  8. 15. inner most layer of the earth both solid and liquid