The universe

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Across
  1. 4. what pulled hydrogen and helium
  2. 5. billions of what started to slow down
  3. 7. when did our solar system form
  4. 9. how was the solar nebula formed
  5. 11. what is the nebula made out of
  6. 12. how many miles away is the sun
  7. 13. What two things made the earth
Down
  1. 1. whos law "redshifted"
  2. 2. What were the first two elements made
  3. 3. what made the dust cloud
  4. 6. how was the world created
  5. 8. how many planets does our solar system have
  6. 10. What holds ice gas and dust together