Universe Vocab-Jaela Jackson-5th

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Across
  1. 2. the death of a large star by explosion
  2. 5. a mass of gas held together by its own gravity
  3. 6. which something begins
  4. 8. an instrument that collects light
  5. 11. the distance between any two corresponding points
  6. 12. large cloud of dust in space
  7. 13. an object that is accurate in its proportions
  8. 14. a unit of length of light that travels in space
  9. 15. to compare the size of other stars with our sun
  10. 17. energy through matter or space
  11. 18. determine if any object is moving toward us
Down
  1. 1. a large grouping of stars in space
  2. 3. waves with a shorter wavelength
  3. 4. all space and the matter space contains
  4. 7. long wavelengths and long frequencies
  5. 9. a body which the earth and other planets resolve
  6. 10. wave with very high energy and no mass
  7. 13. how fast light travels
  8. 15. stars that spread out from the galaxy
  9. 16. electromagnetic waves that are very high energy