Science Vocab

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Across
  1. 1. Milkyway is a
  2. 3. The actual brightness of an object
  3. 4. Hertzsprung Russel
  4. 8. A region where stars are born
  5. 9. What the poster we did is about
  6. 11. A star that has collapsed under gravity
  7. 12. A giant explosion where a massive star collapses
Down
  1. 2. A measure of how bright a star would be from a standard distance
  2. 5. Brightness of star as seen from Earth
  3. 6. What scientists use to measure far things
  4. 7. Remainings of an old star
  5. 10. Contains galaxies