A Virtual Sun Lesson

 

Visit the Virtual Sun site and answer the questions below.

 

  1. How hot is the center of the sun?
  2. Is the air pressure more intense on the sun than the Earth? If so, by how much?
  3. What is the photosphere?
  4. What is a solar spot?
  5. Is the temperature higher or lower in a solar spot than in surrounding areas?
  6. How long does the solar cycle last?
  7. What causes graniness or granulation on the sun's surface?
  8. How large is each cell?
  9. What is the chromosphere?
  10. What is the temperature in the chromosphere?
  11. What causes solar flares?
  12. What is a coronal hole?
  13. What is a corona?
  14. When can you see the corona?
  15. How hot is the corona?
  16. What is a solar wind?
  17. Where does it begin?
  18. How far does it travel?
  19. What creates the tail of a comet?
  20. Where does the solar wind travel the fastest?
  21. When did the solar spots not exist?
  22. What is luminosity?
  23. How much hydrogen has been used up by the sun?
  24. When all they hydrogen is gone, the sun will swell. How much larger will it become?
  25. How much brighter will it become?
  26. What will the size of the sun be in 250 million years?
  27. How much brighter?
  28. What is a planetary nebula?
  29. Describe the final stage of the sun.
  30. Who created this Internet program Virtual Trip tot he Sun?
  31. Summarize in 2-3 sentences what the Hertzsprung-Russell diagram shows.

Comments:tuckerjs@fultonlk12.ga.us

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Revised 1/5/98