Earth

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Across
  1. 2. core: the only liquid core filled with iron and nickel
  2. 4. the outer layer
  3. 5. core: the the hottest layer in the center of the earth
  4. 7. Accretion: the gradual growth of a planet by collision and sticking.
  5. 10. the make up of something
  6. 11. the layer of the earth in the center made of 2 parts
Down
  1. 1. how tightly packed the matter in the substance is
  2. 3. earth's thickest layer
  3. 6. a measure of the amount of the weight in an object
  4. 8. into 3 layers based on what they are made of
  5. 9. layers: when earth is divided