Unit 3 science vocabulary space Jessica O'Donnell

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