Save
Busy. Please wait.
Log in with Clever
or
show password
Forgot Password?
Don't have an account?  Sign up 
Sign up using Clever
or
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. Your email address is only used to allow you to reset your password. See 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.
focusNode
Didn't know it?
click below
 
Knew it?
click below
Don't Know
Remaining cards (0)
Know
0:00
edit
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

NR unit 5

TermDefinition
Biodiesel processed fuel made from vegetable oil or animal fats which can be used in unmodified diesel engines
Biofuels any plant or animal material that can be used as a fuel
Coal fossil fuel in the form of a black or brown rock that developed from plants that died between one and four hundred million years ago
Crude oil fossil fuel taken from the earth in a liquid form and then refined into different types of petroleum fuels
Ethanol a type of biofuel produced from plant materials; flammable, colorless chemical compound
Geothermal energy heated groundwater used as an energy source
Global warming the increase in the average temperature of the Earth's near-surface air and oceans
Greenhouse effect the process by which the emission of infrared radiation by the atmosphere warms the Earth’s surface
Hydropower power produced by capturing the energy of falling water
Natural gas fossil fuel taken from the earth in the form of a gas
Nuclear energy energy produced by the fission of atomic nuclei
Seismograph device using sound waves to find fossil fuels
Solar energy heat collected from the sun as an energy source
Created by: csmith7393
Popular Standardized Tests sets

 

 



Voices

Use these flashcards to help memorize information. Look at the large card and try to recall what is on the other side. Then click the card to flip it. If you knew the answer, click the green Know box. Otherwise, click the red Don't know box.

When you've placed seven or more cards in the Don't know box, click "retry" to try those cards again.

If you've accidentally put the card in the wrong box, just click on the card to take it out of the box.

You can also use your keyboard to move the cards as follows:

If you are logged in to your account, this website will remember which cards you know and don't know so that they are in the same box the next time you log in.

When you need a break, try one of the other activities listed below the flashcards like Matching, Snowman, or Hungry Bug. Although it may feel like you're playing a game, your brain is still making more connections with the information to help you out.

To see how well you know the information, try the Quiz or Test activity.

Pass complete!
"Know" box contains:
Time elapsed:
Retries:
restart all cards