earth

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Across
  1. 4. only layer we can stand on
  2. 5. Ni on the periodic table
  3. 7. the densest layer
  4. 8. comes out of a volcano
  5. 10. we are on it
Down
  1. 1. made of molten lava
  2. 2. the only liquid layer
  3. 3. caused by earth quakes
  4. 6. Fe on the periodic table
  5. 9. in the sky