Unit 3 Science Vocabulary Space

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Across
  1. 2. Dwarf A small hot dim star would be if it were seen from a standard distance.
  2. 4. A gigantic explosion in which a massive star collapses and throws its outer layers into space
  3. 6. Magnitude The brightness of a star as seen on earth.
  4. 7. Space and all the matter and energy in it.
  5. 8. A collection of stars, dust, and gas bound together by gravity.
  6. 9. Star A star that has collapsed under gravity to the point that the electrons and protons have smashed together to form neutrons.
  7. 10. year The distance that light travels in a year; about 9.46 trillion kilometers
Down
  1. 1. A large cloud of gas and dust in interstellar space; a region where stars are born.
  2. 3. diagram Hetzsprung-Russell diagram a graph that shows the relationship between a stars surface temperature and absolute magnitude.
  3. 5. Spectrum All of the frequencies of wavelenghts of electromagnetic radiation.