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Weathering
Olivo
15
Science
7th Grade
09/29/2010

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Cards

Term
Chemical weathering
Definition
Occurs when chemical reactions dissolve the minerals in rocks or change them into diffrent minerals.
Term
Climate
Definition
weather pattern that occurs in a particular area over many years.
Term
Humus
Definition
Dark colored, decayed organic matter that supplies nutrients to plants and is found mainly in topsoil.
Term
Ice Wedging
Definition
Mechanical weathering process that occurs when water freezes in the cracks of rocks and expands, causing the rock to break apart.
Term
Leaching
Definition
Removal of minerals that have been dissolved in water.
Term
Mechanical Weathering
Definition
Physical process that breaks rocks apart without changing.
Term
Oxidation
Definition
Chemical weathering process that occurs when metallic material is exposed to oxygen and water over time.
Term
Soil
Definition
Mixture of weathered rock, decayed organic matter, mineral fragments, water and, air that can take thousands of years to develope
Term
Weathering
Definition
Mechanical or chemical surface processes that break rocks into smaller and smaller pieces.
Term
Erosion
Definition
Process in which surface materials are worn away and transported from one place to another by agents such as gravity, water, wind, and glaciers.
Term
Deflation
Definition
A typeof erosion that occurs when wind blows over loose sediments, removes small particals, and leaves coarser sediments behind.
Term
Deposition
Definition
Dropping of sediments that occurs when an agent of erosion, such as gravity, a glacier, wind, or water, loses its energy and can no longer carry its load.
Term
Dune
Definition
Mound formed when windblown sediments pile up behind an obstacle; common landform in desert area's.
Term
Mass Movement
Definition
Any type of erosion that occurs as gravity moves materials down slope.
Term
Slump
Definition
A type of mass movement that occurs when a mass of material moves down a curved slope.
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