The Sun - CPALMS.org
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Transcript The Sun - CPALMS.org
THE SUN
It’s big!
It’s bright!
It’s necessary!
http://www.nasa.gov/images/content/665490main_20120705_114522orig_full.jpg
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3-2-1 THE SUN
In your notebook write the following:
Three
things you already know about the Sun
Two things you find interesting about the Sun
One question you still have about the Sun
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3-2-1 POSSIBLE ANSWERS
The Sun is a star. It is a large ball of gas.
The provides energy for us on earth.
The Sun is a yellow star. It is a main sequence
star.
It is really hot.
It produces energy through nuclear fusion
Question- Why does it have temperatures? How
is the Sun similar to Earth?
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NASA SUN SONG
https://c1.staticflickr.com/9/8249/8515999093_0b07ef52ed_z.jpg
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REVIEW HEAT TRANSFER
Radiation-energy transfer as particles or waves
Hand
Conduction- energy transfer by touching
Clap
wiggles like a snake or wave up and down
hands together
Convection- energy transfer by circulation or
movement in a liquid or gas
Hand
moves in a circular path
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STRUCTURE OF THE SUN (LAYERS)
http://upload.wikimedia.org/wikipedia/commons/7/76/Sun_diagram.svg
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1. Core
2. Radiative zone
3. Convective zone
4. Photosphere
5. Chromosphere
6. Corona
7. Sunspot
8. Granules
9. Prominence
STRUCTURE OF THE SUN (LAYERS)
Core- center of the Sun
15,000,000º
C
Nuclear fusion occurs here
What
is nuclear fusion again?
http://openclipart.org/image/30
0px/svg_to_png/40357/appleco
re.png
http://upload.wikimedia.org/
wikipedia/commons/4/4d/N
uclear_fusion.gif
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STRUCTURE OF THE SUN (LAYERS)
Radiative zone- layer in which energy is
radiated away from the core
Heat
moves out from the center
Convective zone
http://upload.wikimedia.org/wikipedia/commons/3/3
8/Heating-Radiator.svg
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Core
STRUCTURE OF THE SUN (LAYERS)
Convective zone-Layer of the Sun in which
energy travels by convection
Energy
flows from radiative zone to the
photosphere
http://upload.wikimedia.org/wikipedia/commons/0/08/Convection.gif
(C) Copyright 2014 - all rights reserved www.cpalms.org
(C) Copyright 2014 - all rights reserved www.cpalms.org
STRUCTURE OF THE SUN (LAYERS)
Photosphere (photo means light)- visible
surface of the Sun
Average
temperature 5,527º C
Layer in which energy escapes to space
http://upload.wikimedia
.org/wikipedia/common
s/3/37/Sun_projection
_with_spottingscope.jpg
STRUCTURE OF THE SUN (LAYERS)
Chromosphere-The middle layer of the Sun’s
atmosphere
Temperatures
reach 6,000º C
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http://upload.wikimedia.org/wikipedia/commons/d/d4/Sun_poster.svg
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STRUCTURE OF THE SUN (LAYERS)
Corona- the outermost layer of the Sun
Temperature reaches 2,000,000º C
http://upload.wikimedia.
org/wikipedia/commons
/0/06/469368main_Su
n_layers_unlabeled_full.j
pg
STOP AND PROCESS
Take your notes and draw a picture of the Sun.
Include each of the layers.
Leave space to add solar activity
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REVIEW ROTATION VERSUS REVOLUTION
Does the Sun rotate or revolve?
Let’s act it out!
Stand
in one spot and spin in a circle. Is this
rotation or revolution?
Now walk around the classroom in a circle. Is this
rotation or revolution?
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SOLAR ACTIVITY
Sunspots- dark areas on the Sun’s surface
They
are 1,500ºC
Last days to months
Activity occurs on an 11 year cycle
Caused by Sun’s magnet field
http://upload.wikimedia.or
g/wikipedia/commons/thu
mb/2/28/Sunspot_Numbe
rs.png/800pxSunspot_Numbers.png
SOLAR ACTIVITY
Solar Flares- an explosion of energy from the
photosphere
Can
extend as far as Corona
Watch
quick video
http://www.youtube.com/watch?v=JyLTMjVFCw
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http://xdem.free.fr/uploaded_images/TRACE_SolarFlare-742697.jpg
SOLAR ACTIVITY
Prominences- Huge loops of cool gas that go
out from the photosphere
http://i.ytimg.com/vi/J1rs7CTlOP8/0.jpg
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LET’S ACT IT OUT
Solar FlareMake a Y with your arms
https://openclipart.org/image/300px/svg_to_png/191
801/Happy_Boy_.png
Solar Prominence- Make an O with your arms
above your head.
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FINISHING YOUR DIAGRAM
Add examples of the solar activities to your
model( Sunspots, solar flares, prominences)
Get with your group and compare your
diagrams. Fix them until they are all perfect.
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(C) Copyright 2014 - all rights reserved www.cpalms.org
NAME THAT FEATURE