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Weathering Flashcards
Weathering Terms
20
Science
11th Grade
02/08/2010

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Term
Weathering
Definition
the natural process by which atmospheric and enviornmental agents such as wind rain and temperature changes,disintegrates and decomposes rocks
Term
Mechanical Weathering
Definition
thr process by which rocks break down intp smaller pieces by physical means.
Term
Abrasion
Definition
the grinding and wearing away of rock surfaces through the mechanical action of other rock or sand particals.
Term
Chemical Weathering
Definition
the process by which rocks break down as a result of chemical reations.
Term
Oxidation
Definition
the process by which metallic element combines with oxygen.
Term
Hydrolysis
Definition
a chemical reaction between water and another substance to form two or more new substances
Term
Carbonation
Definition
the conversion of a compound into a carbonate.
Term
Acid Precipitation
Definition
precipitation such as rain sleet or snow that contains a high concentration of acid often because of the pollution of the atmosphere.
Term
Differential Weathering
Definition
the process by which softer less weather-resistant rocks wear away at a faster rate than harder, more weather resistant rocks do.
Term
Soil
Definition
loose mixture of rock fragments and organic material that can support the growth of vegetation.
Term
Soil profile
Definition
a vertical section of soil that shows the layers, or horizons.
Term
Horizon
Definition
a horizontal layer of soil that can be distinguished from the layers above and below it.
Term
Humus
Definition
dark, organic material formed in soil from decayed remains of plants and animals
Term
Erosion
Definition
a process in which the materials of Earth's surface are loosened, dissoved or worn away and transported from one plac to another by a natural agent, such as wind, water, ice, or gravity.
Term
Sheet erosin
Definition
the process which water flows over layer of soil and removes topsoil.
Term
Solifluction
Definition
the slow downslope flow of soli saturated with water in areas surrounding glaciers at high elevations
Term
Creep
Definition
the slow downhill movement rock material
Term
Landform
Definition
a physical feature of Earth's surface
Term
mass movement
Definition
the movement of a large mass of sediment or a sekection of land down a slope
Term
mass movement
Definition
the movement of a large mass of sediment or a sekection of land down a slope
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