The Big Bang Theory

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Across
  1. 5. an idea that is backed by a significant amount for evidence
  2. 6. _____ was able to observe galaxies moving away from each other
  3. 9. makes up 75% of the universe
  4. 10. the leftover radiation from the Big Bang
  5. 11. This theory is believed to have started about 14 billion years ago
  6. 12. How long after the big bang did the universe grow to be the size of a softball
Down
  1. 1. evidence that supports the Big Bang Theory
  2. 2. acts the opposite way of gravity
  3. 3. predicted the Big Bang Theory before there was evidence for it
  4. 4. evidence that supports the Big Bang Theory
  5. 7. Galaxies moving further apart from eachother
  6. 8. makes up 25% of the universe