Unit 3 Science Vocabulary Space

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Across
  1. 3. a gigantic explosion in which a massive star collapsed and throws its outer layers into space
  2. 4. the distance that light travels in a year
  3. 8. all of the frequencies or wavelengths of electromagnetic radiation
  4. 10. a small hot dim star that is the left over center of an old sun like star
  5. 12. Hertzsprung-Russell diagram a graph that shows the relationship between a star's surface temperature and absolute magnitude
Down
  1. 1. the brightness of a star as seen from earth
  2. 2. a measure of how bright a star would be if it were seen from a standard distance
  3. 5. a large cloud of gas and dust in interstellar space
  4. 6. a star that has collapsed under gravity to the point that electrons and protons have smashed together to from a neutron
  5. 7. the actual brightness of an object such as a star
  6. 9. a collection of stars, dust and gas bound together by gravity
  7. 11. space and all matter and energy in it