unit 3 vocab

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Across
  1. 1. stars are born
  2. 3. brightness of an object
  3. 6. gigantic explosion
  4. 10. wavelengths of electromagnetic radiation
  5. 11. a graph that shows relationships
  6. 12. stars,dust
Down
  1. 2. measure of how bright a star is
  2. 4. electrons and neutrons have smashed together
  3. 5. brightest star seen
  4. 7. space
  5. 8. small hot dim star
  6. 9. time traveled in a year