Busy. Please wait.
or

show password
Forgot Password?

Don't have an account?  Sign up 
or

Username is available taken
show password

why


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.

Remove Ads
Don't know
Know
remaining cards
Save
0:01
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:
Retries:
restart all cards




share
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

8th Grade Science

Soil

TermDefinition
weathering rocks are broken down into small pieces
erosion process in sediments move from one place to another by water, wind, ice, or gravity
deposition process by which sediments settle or drop out or drop out of wind or water
soil mixture of weathered sediment, organic material, water and air. Created by weathering, erosion, and deposition
humus decomposed organic matter
bedrorck solid layer of rock beneath the soil
top soil crumbly, dark brown soil that is a mixture of humus, clay, and minerals also known as soil horizon A
sub soil consists of clay and other particles washed down from the A Horizon also known as soil horizon B
soil horizon (A,B,C) layers of soil with distinct physical properties in a soil profile
pore space spaces between soil particles, water and air are found in pore spaces
soil profile vertical section showing the soil horizons (different layers)
decomposers organisms that break down the remains of dead organisms into smaller pieces and digest them with chemicals
fertility the ability a soil has to support plant life
loam soil made up of about equal parts of clay, sand, and silt
sediments loose materials such as rock fragments, mineral grains, and bits of shell
sod thick mass of tough roots at the surface of the soil
natural resource anything in the environment that humans use
soil conservation management of soil to prevent its destruction
contour plowing farmers plow their fields along the curves of a slope
conservation plowing farmers disturb soil and its plant cover as little as possible
crop rotation farmer plants different crops in a field each year
Created by: SSC