It’s big! It’s bright! It’s necessary! (C) Copyright 2014 - all rights reserved

THE SUN

It’s big!It’s bright!It’s necessary!

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

http://www.nasa.gov/images/content/665490main_20120705_114522-orig_full.jpg

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


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?


NASA SUN SONG


https://c1.staticflickr.com/9/8249/8515999093_0b07ef52ed_z.jpg

https://www.youtube.com/watch?v=a358QLi4Wgs

REVIEW HEAT TRANSFER

Radiation-energy transfer as particles or waves Hand wiggles like a snake or wave up and

down Conduction- energy transfer by touching

Clap hands together Convection- energy transfer by

circulation or movement in a liquid or gas Hand moves in a circular path


STRUCTURE OF THE SUN (LAYERS)

1. Core2. Radiative zone3. Convective zone4. Photosphere5. Chromosphere6. Corona7. Sunspot8. Granules9. Prominence

http://upload.wikimedia.org/wikipedia/commons/7/76/Sun_diagram.svg



Core- center of the Sun 15,000,000º C Nuclear fusion occurs here

What is nuclear fusion again?


http://openclipart.org/image/300px/svg_to_png/40357/applecore.png

http://upload.wikimedia.org/wikipedia/commons/4/4d/Nuclear_fusion.gif


Radiative zone- layer in which energy is radiated away from the core Heat moves out from the center


Core

Convective zone

http://upload.wikimedia.org/wikipedia/commons/3/38/Heating-Radiator.svg


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


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/commons/3/37/Sun_projection_with_spotting-scope.jpg


Chromosphere-The middle layer of the Sun’s atmosphere Temperatures reach 6,000º C

(C) Copyright 2014 - all rights reserved www.cpalms.org http://upload.wikimedia.org/wikipedia/commons/d/d4/Sun_poster.svg


Corona- the outermost layer of the Sun Temperature reaches 2,000,000º C


http://upload.wikimedia.org/wikipedia/commons/0/06/469368main_Sun_layers_unlabeled_full.jpg

STOP AND PROCESS

Take your notes and draw a picture of the Sun. Include each of the layers.

Leave space to add solar activity


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?


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.org/wikipedia/commons/thumb/2/28/Sunspot_Numbers.png/800px-Sunspot_Numbers.png

SOLAR ACTIVITY

Solar Flares- an explosion of energy from the photosphere Can extend as far as Corona

Watch quick videohttp://www.youtube.com/watch?v=Jy-LTMjVFCw


http://xdem.free.fr/uploaded_images/TRACE_SolarFlare-742697.jpg

http://www.youtube.com/watch?v=Jy-LTMjVFCw

http://www.youtube.com/watch?v=Jy-LTMjVFCw

SOLAR ACTIVITY

Prominences- Huge loops of cool gas that go out from the photosphere


http://i.ytimg.com/vi/J1rs7CTlOP8/0.jpg

LET’S ACT IT OUT

Solar Flare- Make a Y with your arms

Solar Prominence- Make an O with your arms above your head.


https://openclipart.org/image/300px/svg_to_png/191801/Happy_Boy_.png

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.


NAME THAT FEATURE


It’s big! It’s bright! It’s necessary! (C) Copyright 2014 - all rights reserved

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