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.

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

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
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


4.1 vocab

hydrosphere - an Earth system that includes all the water on the planet.
atmosphere - the layer of gases that surrounds Earth.
surface water - water found on Earth’s surface in places like oceans, lakes, rivers, and reservoirs.
reservoir - a protected artificial or natural lake that is used to store water.
glacier - a huge mass of ice that forms on land when snow and ice accumulate faster than they melt.
groundwater - water that collects under ground.
water table - the upper level of water under ground; below the water table, all spaces are filled with groundwater.
Created by: gwcs grade 5