universe vocab-Hannah Ayotte-5th

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Across
  1. 4. the transfer of energy through matter or space
  2. 6. consists of a mass of gas held together by gravity
  3. 8. bands of dust that appear dark against bright stars
  4. 14. consists of electric and magnetic waves that travel through the speed of light
  5. 17. all space and the matter space contains
  6. 18. rotational center of a huge galaxy
  7. 19. states that the universe began as a small point
  8. 20. information obtained from experiments
  9. 21. waves with very high energy and no mass
  10. 22. the change in wavelength
Down
  1. 1. waves that are very high energy
  2. 2. representation of an object
  3. 3. how fast light travels
  4. 5. the distance between corresponding points
  5. 7. large cloud of gas and dust in interstellar space
  6. 9. visible light spectrum, the colors we see
  7. 10. waves with long wave lengths and low frequencies
  8. 11. a large grouping of stars in space
  9. 12. a plot surface of the color of stars v.s their brightness
  10. 13. a unite of length equal to the distance that light travels through space
  11. 15. instrument that collects light and radiation
  12. 16. beginning point at which something begins