The Sun - CPALMS.org

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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
(C) Copyright 2014 - all rights reserved www.cpalms.org
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
(C) Copyright 2014 - all rights reserved www.cpalms.org
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
(C) Copyright 2014 - all rights reserved www.cpalms.org
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?
(C) Copyright 2014 - all rights reserved www.cpalms.org
(C) Copyright 2014 - all rights reserved www.cpalms.org
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

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