layers of the earth

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Across
  1. 3. the upper layer of the mantle in a physical sense
  2. 6. The densest layer of the Earth, made up of solid iron and nickel
  3. 7. the current in the mantle that pulls crust underneath
  4. 8. the movements geologists measure to see how strong an earthquake is
  5. 10. the force exerted against an object
Down
  1. 1. least dense layer of the Earth in physical sense
  2. 2. The second densest layer of the Earth, made up of mostly liquid iron and nickel
  3. 4. the compactness of something
  4. 5. the lower layer of the mantle in a physical sense
  5. 9. the least dense layer of the Earth, what we stand on.