Science Crossword - Emma S

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Across
  1. 2. a rapidly spinning neutron star that emits pulses of radio and optical energy.
  2. 3. a star that suddenly becomes brighter.
  3. 6. occurs when magnetic energy that has built up in the solar atmosphere is suddenly realeased.
  4. 9. a massive burst of solar wind and magnetic fields rising above the solar corona or being released into space.
  5. 14. a very large and bright star whose hot core has used most of its hydrogen.
  6. 16. the thin layer of the sun that is just abpve the photosphere and that glows a reddish color during eclipses
  7. 18. the location on the H-R diagram where most stars lie; diagonal pattern from lower right to upper left.
Down
  1. 1. a large celestial body that is composed of gas and that emits light.
  2. 2. cloud of gas that forms around a dying star.
  3. 4. The Suns center
  4. 5. the zone of the sun's interior that is between the core and the convective zone and in which energy moves by radiation.
  5. 7. the visible surface of the sun
  6. 8. an object so massive and dense that even light cannot escape its gravity.
  7. 9. the region of the sun's interior that is between the radiative xone and the photosphere and in which energy is carried upward by convection.
  8. 10. star a star that has collapsed under gravity to the point that the electrons and protons have smashed together to form neutrons.
  9. 11. massive stars that become larger than giants as they leave the main sequence.
  10. 12. the outermost layer of the sun's atmosphere
  11. 13. a large cloud of gas and dust in interstellar space; a region.
  12. 15. a small, hot, dim star that is the leftover center of an old sunlike star.
  13. 17. star that explodes and blows itself apart.
  14. 19. cooler regions in the suns photosphere.