Big Bang

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Across
  1. 2. a separation of components of light based on wavelength
  2. 3. smallest unit of matter
  3. 9. related to the universe
  4. 11. energy moving from one place to another as waves
  5. 12. particle composed of two or more atoms
  6. 13. small
Down
  1. 1. a star that suddenly increases in brightness
  2. 4. a tool to make distant objects appear closer
  3. 5. subatomic particle with negative energy
  4. 6. getting bigger
  5. 7. all existing matter and space
  6. 8. A cloud of gas and dust in space
  7. 10. stretching the wavelength of light so it appears more red