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The Sun powerpoint

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This PowerPoint discusses the Sun at a high school level. It talks about characteristics, solar activities/events, how energy is created, and many more.

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The Sun powerpoint

  1. 1. Our Star: The Sun<br />Nick Pineo<br /> 9-25-11<br />Astonomy<br /> 9-12th grade<br />http://science.nationalgeographic.com/science/photos/sun-gallery/#<br />
  2. 2. Characteristics<br />Milky Way/Center of Solar System<br />Hydrogen and Helium<br />Life – Middle Aged – 5/10 years<br />
  3. 3. Layers <br />Interior<br />Photosphere<br />Chromosphere<br />Corona<br />
  4. 4. Photosphere<br />Radiates most of the sunlight we see – “surface”<br />Granules – small, bright markings– about the size of texas.<br />
  5. 5. Chromosphere<br />Above photosphere<br />Thin layer of hot gases<br />Viewed as a red rim around sun<br />Spicules – located on top of the chromosphere – flaming structures. (described as trees sticking out)<br />
  6. 6. Corona<br />Outer part of sun (atmosphere)<br />Looks like a crown of bright light glowing<br />Solar wind – particles(ionized gases) escaping the corona at high speeds. <br />Ionized referes to the gaining or losing of electrons. <br />
  7. 7. Solar Activities<br />Sunspots<br />Prominences<br />Solar Flares<br />
  8. 8. Sunspots<br />Dark spots<br />Small (1000 miles) to many times the size of Earth<br />
  9. 9. Prominences<br />Cloudlike structures<br />Large amount of gases<br />Looks like a huge flame coming out of the Sun<br />
  10. 10. Solar Flares<br />Brief outbursts of energy<br />Brightening of an area of the Sun above the sunspots. <br />
  11. 11. Structure of Sun<br />http://whyfiles.org/115sun/3.html<br />
  12. 12. Interior<br />Source of energy – nuclear fusion – process to fuse particles together to form heavier particles. Hydrogen – Helium <br />Proton-Proton Chain is created through nuclear fusion. Chain reaction converts 4 hydrogen protons into the nucleus of a helium atom. Some mass is converted to energy. <br />
  13. 13. P-P Chain Cont.<br />When hydrogen is converted to helium, this process – Hydrogen burning.<br />The energy that is released from the P-P chain is transmitted through layers of the sun.<br />
  14. 14. What Does the Sun do for Earth?<br />Energy – light – Food – life<br />Events – Good/Bad<br />Auroras<br />Solar Eclipses<br />Disruption of Radio/Satellite communications<br />
  15. 15. Auroras<br />Effects from strong solar flares – lights up Earth’s atmosphere<br />Northern/Southern lights – North/South Pole<br />Varies in shapes, sizes, and colors<br />Aurora Australis<br />Aurora Borealis<br />http://www.itsnature.org/travel/wp-content/uploads/2010/10/p6133sv.jpg<br />http://geology.com/nasa/aurora-borealis.shtml<br />
  16. 16. Solar Eclipse<br />Eclipse of the sun<br />Alignment between Earth-Moon-Sun<br />New Moon Phase – casts dark shadow on Earth<br />http://en.wikipedia.org/wiki/Solar_eclipse<br />
  17. 17. Disruption of Radio/Satellite Communications <br />Solar flares – large outburst of particles can reach Earth – affecting radio and satellite communications. <br />Very rare events<br />
  18. 18. Summary<br />Sun has 4 major layers<br />Solar activities may include: prominences, sunspots, and solar flares<br />Nuclear fusion and P-P chain<br />Events – auroras, solar eclipses, and disruption in radio or satellite communications due to solar flares<br />
  19. 19. References<br />http://www.michigan.gov/documents/Earth_HSCE_168206_7.pdf<br />Twelfth Edition Earth Science, Edward J. Tarbuck and Frederick K. Lutgens<br />

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