Shared Flashcard Set

Details

Weathering and Soil Formation
Self Explanatory
22
Science
7th Grade
12/04/2006

Additional Science Flashcards

 


 

Cards

Term
Weathering
Definition
Weathering is the process that breaks down rock and othe substances at Earth's surface.
Term
Erosion
Definition
Erosion is the movement of rock particles by wind, water, ice, or gravity.
Term
Mechanical Weathering
Definition
Mechanical Weathering is the type of weathering in which rock is hysically broken into smaller pieces.
Term
Abrasion
Definition
Abrasion refers to the grinding away of rock by rock particles carried by water, ice wind, or gravity.
Term
Ice Wedging
Definition
Wedges of ice in rocks widen and deepen cracks.
Term
Chemical Weathering
Definition
Is the process that breaks down rock through chemical changes.
Term
Permeable
Definition
Permeable means that a material is full of tiny, connected air spaces that allow water to seep through it.
Term
Soil
Definition
Soil is the loose, weathered material on Earth's surface in which plants can grow.
Term
Bedrock
Definition
Bedrock is the solid layer of rock beneath the soil.
Term
Humus
Definition
is a dark colored substance that forms as plant and animal remains decay.
Term
Loam
Definition
is soil that is made up of equal parts of clay, sand,, and silt.
Term
Soil Horizon
Definition
Is a layer of soil that differs in color and texture from the layers above or below it.
Term
Topsoil
Definition
The top layer of soil that is mixture of humus, clay, and other minerals.
Term
Subsoil
Definition
is usally clay and other particles that have been washed out from the layer above it which is topsoil.
Term
Litter
Definition
Plants shed leaves forming this.
Term
Decomposers
Definition
are the organisms that break the remains of dead organisms into smaller pieces and digest them with chemicals.
Term
Sod
Definition
the thick mass of tough roots at the surface of the soil.
Term
Renewable Resource
Definition
is a resource that can be replaced easily naturally.
Term
Dust Bowl
Definition
was an area where severe wind erosion of topsoil accorded in the 1930's.
Term
Soil Conservation
Definition
is the management of soil to prevent it's destruction.
Term
Contour Plowing
Definition
is the practice of plowing fields along the curves of a slope.
Term
Conservation Plowing
Definition
disturbs the soil and it s plant cover as little as possible.
Supporting users have an ad free experience!