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The Sun

The Sun. The Sun Produces Energy. The sun consists mostly of hydrogen Energy is produced when hydrogen in the Sun’s interior turns to helium The sun’s energy is the source of light and warmth that make life possible. Features on the Sun.

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The Sun

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  1. The Sun

  2. The Sun Produces Energy • The sun consists mostly of hydrogen • Energy is produced when hydrogen in the Sun’s interior turns to helium • The sun’s energy is the source of light and warmth that make life possible

  3. Features on the Sun • Near the sun’s surface there are regions of magnetic force called magneticfields

  4. Features on the Sun • Sunspots – spots on the photosphere that are cooler and darker than surrounding areas http://app.discoveryeducation.com/player/view/assetGuid/E916837D-FEDC-4E61-A00A-01A6FCA60EF2

  5. Features on the Sun • Solarflares – eruptions of hot gas from the Sun’s surface

  6. Features on the Sun • Prominences – huge loops of glowing gas that extend into the corona; occur where magnetic fields connecting sunspots soar into the outer atmosphere http://app.discoveryeducation.com/player/view/assetGuid/B11AA2D0-29A1-4DD8-8FA9-9B27B2C6F767

  7. Energy Flows Through the Sun’s Layers • The sun is made entirely of gas, but it still has a structure

  8. Energy Flows Through the Sun’s Layers http://app.discoveryeducation.com/player/view/assetGuid/9B4D92B2-5957-422A-A5E9-2910D3940E33

  9. The Sun’s Interior Core • The center of the sun, made of very dense gas • Fusion - a process in which hydrogen particles collide and combine to form helium, releasing energy that travels through the core by radiation

  10. The Sun’s Interior Radiative Zone • Energy from the core moves by radiation through this thick layer • Conditions in the radiative zone are not extreme enough for fusion to occur

  11. The Sun’s Interior Convection Zone • The transfer of energy from place to place by the motion of heated gas or liquid • Rising currents of hot gas in the convection zone carry energy toward the Sun’s surface

  12. The Sun’s Atmosphere Photosphere • Visible light moves by radiation out into space from the photosphere • It takes about 8 minutes for the light to reach the Earth • The Sun’s “surface” that you see in photographs

  13. The Sun’s Atmosphere Chromosphere • The thin middle layer of the Sun’s atmosphere, which gives off a pinkish light http://app.discoveryeducation.com/player/view/assetGuid/0779144C-D5BC-41B4-9599-0CB53F669AAE

  14. The Sun’s Atmosphere Corona • The outermost layer of the Sun • Varies in shape and extends outward several million kilometers • You can only see the chromosphere and the corona during a totaleclipse of the sun http://app.discoveryeducation.com/player/view/assetGuid/7E1F6EAD-9DAD-4A94-88A9-27B7BA657CBE

  15. The Sun’s Layers

  16. Solar Wind • Solarwind – the electrically charged particles that flow out in all directions from the corona and extends throughout our solar system • Most solar wind flowing toward Earth is safely guided around the planet by Earth’s magneticfield

  17. Solar Wind • When solar wind particles do enter the upper atmosphere, they release energy, which can produce beautiful patterns of glowing light in the sky called Auroras, also known as the northern and southernlights http://app.discoveryeducation.com/player/view/assetGuid/0C5718FB-2E7A-452F-B40A-F715E739C7C8

  18. Solar Wind • Magneticstorms – occur during the peak of the sunspot cycle when flares and other kinds of solar activity release strong bursts of charges particles into the solar wind, which can disrupt electric-power delivery and radio communication

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