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


Weathering The process of breaking rock into smaller pieces.
Mechanical Weathering type of weathering that breaks rock into smaller pieces through physical processes that change the size & shape of the rock.
Chemical Weathering Type of weathering that breaks rock through chemical processes that change the molecular structure of the rock.
Sediment Smaller pieces of rock.
Erosion The process by which water, wind and ice carries sediment from one location to another.
Deposition when erosion stops, sediments fall into layers in a new location.
Abrasion sand and small rock is carried by wind or water and grinds away rock (like a sand blaster)
Plant Growth roots of trees grow into cracks and break apart rock
Animal Actions Animals digging in soil can break rock into smaller pieces.
Freezing & Thawing (ice wedging) Water gets into cracks of rocks and freezes. The water EXPANDS and breaks down rock.
Release of Pressure When rocks reach Earth's surface, reduced pressure causes the rock to crack and flake.
Water Water dissolves rock and is the most important agent of chemical weathering.
Oxygen in the presence of water and iron, oxygen causes rocks to RUST in a process called oxidation.
Carbon Dioxide Carbon dioxide combines with air and creates a weak acid that can break rock down.
Living organisms Living organisms produce weak acids that slowly break rock down.
Acid Rain Burning fossil fuels creates acid rain that can break down rock.
Delta Area that forms as river waters empty into a larger body of water.
Beaches Area of the shoreline made of sediments deposited by waves or rivers.
Barrier Islands Long, narrow islands made of sand that form parallel to the shoreline. They provide a barricade that protects the main land from more weathering and erosion.
Marshes Area found at the transition between water and land ecosystems.
Rivers deposition that occurs as the speed of a river slows and drops out sediment.
Created by: RobGelminiDMS



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