The Big Bang Theory Crossword

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Across
  1. 3. when light has a longer wavelength, expanding toward the red area of the EM spectrum.
  2. 4. wave-like properties
  3. 5. everything that makes up an object
  4. 8. building blocks of the universe
  5. 9. remaining radiation from the early universe
  6. 10. Something that is constantly expanding
Down
  1. 1. the entire range of light
  2. 2. the beginning.
  3. 6. combination of gas, dust, billions of stars, and planets
  4. 7. shorter wavelengths, shrinking toward blue end of the EM spectrum