Busy. Please wait.

Forgot Password?

Don't have an account?  Sign up 

show password


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.

By signing up, I agree to StudyStack's Terms of Service and Privacy Policy.

Already a StudyStack user? Log In

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

Remove ads
Don't know (0)
Know (0)
remaining cards (0)
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:
restart all cards

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


star clusters a group of stars forming a gravitating unit and containing either not more than a few hunderd stars or ten of thousands of stars
lunar eclipse occurs whwn the moon passes directly behind the earth into its umbra.
milky way is the galaxy that contains our solar system
umbra the darkest part of a shodow especially the cone-shaped region of full shadow cast by earth
light year a unit of length in astronomy equal to the distance that light travels in one year in a about 5.88 trillion miles
dead stars is a star that has exhausted all its fuel for nuclear fusion and is simply the core of the former star floating
solar mass is a standard unit of mass in astronomy that is used to indicate the masses of other stars as well as clusters nebulae and galaxies.
blackhole is a place in space where gravity pulls so much that even light can not get out
nebula a cloud of gas and dust in outer space
earth's seasons one of the four equal periods into which the year is diviedby the equinoxes and solstices
Created by: jaylah1034871