Layers of the earth

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Across
  1. 1. inside the mantle
  2. 3. the reasons for the layers of the earth
  3. 5. one of the elements in the core, sign NI
  4. 8. the innermost layer and the hottest
  5. 9. what we live on and has the layers of the ___
  6. 10. causes Continental Drift
Down
  1. 2. the second layer of the earth and the thickest
  2. 4. responsible for earth's magnetic field
  3. 6. what we live on and is the least dense
  4. 7. made by earthquakes
  5. 11. one of the elements in the core, sign FE