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



nitrogen makes up 78% of our atmosphere
oxygen makes up 21% of our atmosphere
greenhouse effect makes up 1% of our atmosphere
common greenhouse gasses water vapor, carbon dioxide, methane
causes of greenhouse gasses cars and trucks landfills animal respiration volcanoes livestock farts deforestation forest fires ocean water evaporation***
atmosphere layer of gasses that surrounds the earth
troposphere lowest level- all weather takes place
stratosphere third level-contains o-zone which absorbs harmful ultra-violet rays from the sun
mesosphere 2nd level-most meteors that enter the atmosphere burn up here
thermosphere highest level- here, the atmosphere meets with outer space
density amount of mass in the amount of volume
evaporation when liquid water changes to a gas when heated by the sun
transpiration when water is evaporated through plants
condensation when water as a gas changes back to a liquid
precipitation when liquid water falls back down to the earth
air pressure
relative humidity
dew point
cirrus cloud
cumulus cloud
stratus cloud
Created by: bopaloma