Busy. Please wait.
or

show password
Forgot Password?

Don't have an account?  Sign up 
or

Username is available taken
show password

why


Make sure to remember your password. If you forget it there is no way for StudyStack to send you a reset link. You would need to create a new account.
We do not share your email address with others. It is only used to allow you to reset your password. For details read our Privacy Policy and Terms of Service.


Already a StudyStack user? Log In

Reset Password
Enter the associated with your account, and we'll email you a link to reset your password.

Remove ads
Don't know
Know
remaining cards
Save
0:01
To flip the current card, click it or press the Spacebar key.  To move the current card to one of the three colored boxes, click on the box.  You may also press the UP ARROW key to move the card to the "Know" box, the DOWN ARROW key to move the card to the "Don't know" box, or the RIGHT ARROW key to move the card to the Remaining box.  You may also click on the card displayed in any of the three boxes to bring that card back to the center.

Pass complete!

"Know" box contains:
Time elapsed:
Retries:
restart all cards




share
Embed Code - If you would like this activity on your web page, copy the script below and paste it into your web page.

  Normal Size     Small Size show me how

The Sun

The solar system: The Sun

QuestionAnswer
Aurora Australis Southern lights; caused by solar winds
Aurora Borealis Northern lights; caused by solar wind
Convection Zone (Sun's interior)top or outermost layer. Gases rise and cool; then sink, forming loops of gas that move energy towards sun's surface. Generates sun's magnetic field.
Corona Outer layer of sun's atmosphere; visible during total solar eclipse; looks like a halo around the sun; extends into space for millions of km; gradually thins into think streams of electrically charged particles called solar wind.
Solar Flares Sudden bursts of energy in the form of fire that erupts on the sun's surface; happens when sunspot loops connect and release huge amounts of magnetic energy
Solar Winds Solar flares increases this; responsible for increase in number of magnetic particles reaching Earth's atmosphere; create powerful electric currents that result in greenish, red or purple glow in Earth's sky; can also cause magnetic storms
Sunspots Areas of gas on the sun's surface; cooler than the gas around it; appear darker; helped prove sun rotates on its axis; 11 year cycle; most disappear in two weeks; form where magnetic field is strongest
Differential rotation Different parts of the sun have different periods of rotation, it also influences magnetic activity on the sun.
Created by: kelleyumlauf