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.
Didn't know it?
click below
Knew it?
click below
Don't know (0)
Remaining cards (0)
Know (0)
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

Unit 4 Vocabulary


Chemical Energy The potential energy locked within a system.
Exhaustible Energy Any source of energy that is limited and cannot be replaced when it is used, such as oil, coal, and natural gas.
Inexhaustible Energy An energy source that will never run out.
Kinetic Energy The energy possessed by a body as a result of its motion.
Mechanical Energy Energy produced by mechanical devices, such as gears, pulleys, levers, or internal combust
Non-Renewable Energy A resource that cannot be replaced once used. ion engines.
Nuclear Energy The power of the atom.
Renewable Energy A resource that can be replaced when needed.
Alternative fuels Fuels to eventually replace dwindling supplies of fossil fuels, such as biodiesel and hydrogen.
Energy conservation Conserving resources through efficient and prudent use.
Natural resources Naturally occurring materials found within the Earth or its atmosphere.
Biodegradable Items that can easily degrade by natural processes such as exposure to sun and water or the action of bacteria of fungi.
Conduction The way in which heat travels through a solid material.
Convection The way in which heat travels by movement or circulation within liquids or gases.
Insulation A material used to prevent the passage of heat, electricity, or sound.
Organic Materials Materials with carbon-based structures that originate from or relate to living organisms
Raw Materials A material that is human-made or is from natural resources that is used to produce a product.
Created by: woodallh



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:
restart all cards