8th grade ch. 3 sec. 2 the sun
Post on 16-Jan-2015
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The sun’s gravity is the most powerful force in the solar system because the sun’s
mass is so large.
99.8 % of the mass of the solar system is in the sun.
Sun’sinterior
coreradiation
zoneconvection
zone
corecore• center of Sun• nuclear fusion • hydrogen atoms helium
atoms• occurs only under conditions
of extremely high temp. (15 million oC) & pressure
• makes sun’s energy
radiation zone• middle layer of
sun’s interior
• region of very tightly packed gas
• energy transferred by electromagnetic radiation
convection zone
• outermost layer of sun’s interior
• hot gases rise & cooler gases sink
layersof sun’s
atmosphere
1.photophotosphere
2.chrommosphere
3.corona
• inner layer• image you see in photophotograph
•mmiddle layer•reddish glow
• outer layer• visible during
total solar eclipse
sends outsolar wind
corona
solar windsolar wind
• stream of electrically charged particles
features on Sun
sunspots prominences solar flares
dark areas on sunthat are cooler
than gasesaround them
loops of gas that link sunspot
regions
explosions that occur when
sunspots connect
# of sunspots variesover a 10-11 year cycle
prominencesprominences
solar flares
• increase solar wind
• cause auroras
ghost
wispy witch
green ghost
The Ring
eerie spirit
SPOOKY SPOOKY AURORAAURORA
SS
NASA eClips-Our Sun
Edible cookie
• Arched Twizzler = prominence
• Mini chocolate chips = sunspots
• Sprinkles = photosphere
• Frosting = convection zone
• Cookie = radiation zone
• Center of the cookie = core
• Straight Twizzler = solar flare
Song to remember layers
Make a model of the sun, identifying layers of the Sun's interior & atmosphere. Also, include features of the sun.
Rubric:
Layers of interior 20
Layers of atmosphere 20
Features 20
Creativity 30
Labels 10
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