universe vocab-Ben Turner-3rd

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Across
  1. 4. how fast light travels
  2. 6. the change in wavelength that lets us know if an object is coming toward us or not
  3. 7. electromagnetic waves with longer wavelengths than visible light
  4. 9. a theory that says the universe began as a small point that expanded rapidly
  5. 10. ____ radiation consisting of electric and magnetic waves
  6. 15. the transfer of energy through matter or space as electromagnetic waves
  7. 18. all space and matter in space contains
  8. 19. provide us with visible light spectrum
  9. 21. electromagnetic waves with very high energy and no mass or charge
Down
  1. 1. electromatic _____ vast arrangement of electromagnetic waves in relation to their wavelengths
  2. 2. a large grouping of stars in space
  3. 3. area of stars spread out from the center of a spiral galaxy
  4. 4. a self luminous celestial body
  5. 5. rotational center of a huge galaxy
  6. 8. an explosive death of a star
  7. 11. the distance light travels in a year
  8. 12. an instrument that collects light or other electromagnetic radiation and concentrates for better observation
  9. 13. a huge grouping of stars in which contains the solar system
  10. 14. ___ galaxy - a galaxy with very little symmetry
  11. 16. begining point at which something begins
  12. 17. electromagnetic waves with long wavelengths and low frequencies
  13. 20. scientific _____ unifying scientific explanations for a range of hypotheses and observations that have been supported by scientific experiments