Space Science Crossword

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Across
  1. 4. Last name of the person who discovered the spectra of light
  2. 7. The moment the universe was created
  3. 10. The subject that teaches you about WW2
  4. 11. Goes up and down , creating a frequency
  5. 12. Rhymes with committed
  6. 13. State of _____
  7. 14. Ryhmes with cars and is in the sky
  8. 15. The action of becoming larger or more extensive
Down
  1. 1. Name starts with M
  2. 2. Used to solve a crime
  3. 3. Indicates the galaxy is moving away from earth and expanding
  4. 5. Contains all the stars, planets and solar systems
  5. 6. The ____ effect
  6. 8. Gardians of the _____
  7. 9. Phones admit dangers ____