History of the Universe

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Across
  1. 2. someone who studies the universe is an...
  2. 4. Miller who made the first experiment that produced amino acids?
  3. 5. Scientists think the universe is...
  4. 8. dwarf stars outer layers of red giants drift away and shrink into...
  5. 9. Do we know everything about the Big Bang Theory?
  6. 10. when did astronomers discover that galaxies are moving away from Earth and one another?
  7. 11. theory is used to describe the beginning of the universe.
  8. 14. low mass and medium mass stars will cool down and swell into...
  9. 15. bodies asteroids, meteors, and comets are...
  10. 16. What colors are in the spectrum?
Down
  1. 1. All stars begin their lives in a...
  2. 3. theory is the name of the expansion of the universe.
  3. 6. approximately how many stars are there in our galaxy?
  4. 7. acids these molecules combine to form proteins that make up living things.
  5. 9. These stars shine brightly at first, and are usually blue or white in colour.
  6. 12. Which planet may have the only right conditions to support life?
  7. 13. The study of stars is what?