Busy. Please wait.

show password
Forgot Password?

Don't have an account?  Sign up 

Username is available taken
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.
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.
Don't know
remaining cards
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

Essential Standard1

Abiotic Not derived from living organisms. Example: Sun
Cycles Sequence of events that repeat themselves. Example: Food Cycle
Gravity A force that attracts a body towards the center of Earth. Example: The force that holds gases in the sun
Oceanography A branch of science that deals with the ocean. Example: Observing a fish
Astronomy A branch of science that deals with stars, planets, space etc. Example: Observing the stars from home
Density The quantity of mass per unit volume. Example: Oil and Water
Atmosphere A series of gases surrounding the planets and Earth. Example: None
Electromagnetic An interrelation of electric currents and magnetic fields. Example: Cell phones
Created by: kandi0629