Busy. Please wait.
Log in with Clever

show password
Forgot Password?

Don't have an account?  Sign up 
Sign up using Clever

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

Lesson 3

Other Natural Resources of Pennsylvania

natural resource Raw materials that exist in a natural state and are used to produce products or finished goods.
forest A large growth of trees and underbrush.
loam Made up of sand, silt, clay, and organic matter which makes up much of soil.
fossil fuels Resources formed millions of years ago from remains of plants and animals under the earth's crust.
anthracite Hard coal.
bituminous Soft coal.
natural gas Gas coming from the earth's crust through natural openings or bored wells.
petroleum An oily flammable liquid obtained from wells drilled in the ground and refined into gasoline and fuel oils
mineral resources Any useful substance found in the earth that has not been formed by plant and animal remains.
human resources Utilizing the talents of the state's population.
population density An average of how many people there are per square mile.
census A periodic governmental count of the population.
Created by: akennon
Popular History sets




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