Term
|
Definition
| the movement of rock particles by wind, water, ice, or gravity |
|
|
Term
|
Definition
| the type of weathering in which rock is physically broken into smaller pieces (works slowly) |
|
|
Term
|
Definition
| the process that breaks down rock and other substances |
|
|
Term
|
Definition
| the grinding away of rock particles carried by water, ice, wind, or gravity |
|
|
Term
|
Definition
| the process in which wedges of ice in rocks widen and deepen cracks |
|
|
Term
|
Definition
| the process that breaks down a rock through chemical changes |
|
|
Term
|
Definition
| the material is full of tiny, connected air spaces that allow water to seep through it |
|
|
Term
|
Definition
| the loose, weathered material on Earth's surface in which plants would grow |
|
|
Term
|
Definition
| the solid layer of rock beneath the soil |
|
|
Term
|
Definition
| dark-colored substance that forms as plant and animals remains decay |
|
|
Term
|
Definition
| soil that is made up of equal parts of clay, sand and silt |
|
|
Term
|
Definition
| layer of soil that differs in color and texture from the layer above or below it |
|
|
Term
|
Definition
| a crumbly, dark brown soil that is a mixture of humus, clay and other materials |
|
|
Term
|
Definition
| usually consists of clay and other materials but little humus |
|
|
Term
|
Definition
| the organisms that break the remains of dead organisms into smaller peices and digest them with chemicals |
|
|
Term
|
Definition
| thick mass of tough roots at the surface of the soil |
|
|
Term
|
Definition
| one that is naturally replaced in a relatively short time |
|
|
Term
|
Definition
| area where wind erosion caused severe loss of topsoil during the 1930's |
|
|
Term
|
Definition
| the management of soil to prevent its destruction |
|
|
Term
|
Definition
| the practice of plowing fields along the curves of a slope |
|
|
Term
|
Definition
| plowing that disturbs the soil and its plant cover as little as possible |
|
|
Term
|
Definition
| as plants shed leaves, the form a loose layer called _______ |
|
|
Term
| What factors cause mechanical weathering? |
|
Definition
| The factors that cause mechanical weathering are freezing, thawing, release of pressure, growth of plants, and actions of animals. |
|
|
