Big Bang Theory

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Across
  1. 2. shorter wavelengths
  2. 4. one of the first elements to form, atomic number 2
  3. 5. the force responsible for the creation of galaxies and stars
  4. 6. what all matter is made up of
  5. 8. made up of all matter and space that exists
  6. 9. The theory that the universe is always expanding and was once much denser
Down
  1. 1. what we use to observe CMB and light
  2. 3. longer wavelengths
  3. 4. one of the first elements to form, atomic number one
  4. 7. Leftover energy/particles from the creation of the universe