Big Bang

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Across
  1. 1. radiation from the big bang that was discovered by radio telescopes
  2. 5. in the centers of atoms, made of protons and neutrons
  3. 6. the theory that the universe originated from the:
  4. 8. tiny "objects" that make up everything
  5. 10. the building blocks of matter
  6. 11. second most abundant element
  7. 12. scale of the wavelengths of light
  8. 13. most abundant element in the universe
Down
  1. 2. visual effect that varies intensity by distance
  2. 3. a force than pulls matter together
  3. 4. everything
  4. 7. made of photons
  5. 9. a type of telescope that can observe radio wavelengths