Formation of the Earth

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Across
  1. 5. What did the less dense materials do?
  2. 6. Where did the Earth first start to cool? On the _________.
  3. 10. What is the innermost layer of the Earth?
  4. 13. How many years did it take to create ProtoEarth?
  5. 14. Name of the Earth when it first started
Down
  1. 1. Where did the less dense materials go?
  2. 2. Outermost layer of the Earth
  3. 3. Where did the more dense materials go?
  4. 4. When the Earth first formed, what was the temperature?
  5. 7. Why does the Earth even have different layers?
  6. 8. Color that artists make ProtoEarth
  7. 9. What is the second layer from the outside?
  8. 11. Planet we are on
  9. 12. What did the more dense materials do?