Chapter 7 & 8 Crossword Dominic

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Across
  1. 2. which ocean is the warmest
  2. 6. early steps of organisms forming organic building blocks
  3. 8. what chemical element made the planets, stars, oceans,etc
  4. 10. who experience with atmosphere gases
  5. 11. the star collapse explosion
  6. 12. how many galaxies are there
  7. 13. our galaxy name
Down
  1. 1. when was the earth form
  2. 3. why stars shine
  3. 4. how long did the accretion period last
  4. 5. which land is the smallest
  5. 7. one of the galaxy shapes
  6. 9. the northern ocean