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


biomass the total mass of organisms in a given area or volume
Consumption the using up of a resource
Energy the strength and vitality required for sustained physical or mental activity.
Fuel Cell a cell producing an electric current directly from a chemical reaction.
Geothermal of, relating to, or produced by the internal heat of the earth.
Nuclear of or relating to the nucleus of an atom.
pollution the presence in or introduction into the environment of a substance or thing that has harmful or poisonous effects.
solar of, relating to, or determined by the sun.
renewable energy Renewable energy is generally defined as energy that comes from resources which are continually replenished on a human timescale such as sunlight, wind, rain, tides, waves and geothermal
non-renewable energy Used to describe energy sources that exist in a limited amount on Earth. Thus all available material could eventually be completely used up.
Hydro-power powere generated by using water
wind power power obtained by harnessing the energy of the wind.
Robots a machine capable of carrying out a complex series of actions automatically, esp. one programmable by a computer.
Created by: ztrammel