Science Chapter 4

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Across
  1. 3. the force that resists motion
  2. 6. a star system containing millions to billions of stars
  3. 8. the distance light travels in one year
  4. 10. wind, particles of gas that escape into space at high speed
  5. 11. an area containing no air or any other matter
  6. 13. brigtest star in the night sky
  7. 14. a group of stars that
  8. 17. closest star to earth
  9. 18. the hottest region of the sun, central part
  10. 19. prominences, huge loops of cooler gas that erupt thousands of miles from the chromosphere
  11. 20. large clouds of gas and dust floating in space
Down
  1. 1. the sun's visible surface is called this
  2. 2. the actual brightness of a star
  3. 4. hottest region of the sun, looks like a haze around the sun
  4. 5. Way, the galaxy in which we live
  5. 7. the apparent brightness of a star as seen from earth
  6. 9. visible patches or darker spots that slowly move across the face of the sun
  7. 12. the study of stars, planets, and all other heavenly bodies
  8. 15. actual explosion of a star
  9. 16. two stars that circle around each other