Stars and Sun Review

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Across
  1. 2. Tool used by scientists to classify stars
  2. 3. Weakest of the fundamental forces
  3. 4. "Layer" of the Sun that protects the solar system
  4. 6. Caused by interactions between the Earth's atmosphere and solar phenomena that reach Earth
  5. 10. Solar phenomena that intensify over 11 year cycles
  6. 12. Color of cooler temperature stars
  7. 13. Color of hotter temperature stars
  8. 14. Most dense layer of the Sun
  9. 16. Middle layer of the Sun's atmosphere
  10. 17. Powerful bursts of energy from the Sun's photosphere, can cause geomagnetic storms
  11. 19. Years in a solar cycle
  12. 21. A colorful, circular cloud of gas & dust surrounding a very white star
  13. 26. Part of the Sun responsible for generating solar phenomena
  14. 27. Nuclear reaction that powers stars, lighter elements form heavier elements
  15. 28. The lifecycle path of a star depends on their what?
  16. 29. Energy in this layer of the Sun can take170,000 years to escape!
  17. 30. Stage our Sun will turn into once it runs out of it's hydrogen
Down
  1. 1. The most abundant element in the universe
  2. 5. Strongest of the fundamental forces
  3. 7. Visible surface of the Sun, sunspots are found here
  4. 8. All stars begin in this stage
  5. 9. Stage after nebula, before fusion begins
  6. 11. Random breakdown of atoms
  7. 12. Type of star that is able to produce the most heavy elements through fusion
  8. 15. Third most dense layer of the Sun, hot plasma rises & cooler plasma sinks
  9. 18. After the Sun explodes, it will turn into this stage
  10. 20. A measure of a star's brightness
  11. 22. Stars larger than our Sun are referred to as this
  12. 23. Where/when most material in the Universe was generated
  13. 24. Nuclear reaction where heavy elements break down into smaller elements
  14. 25. Outermost layer of the Sun, shines in X-ray and UV lights