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weathering
Sotelo
15
Science
7th Grade
09/29/2010

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Term
Chemical Wethering
Definition
Occurs when chimical reactions dissolve the minerals in rocks or change them into diffrent minerals.
Term
Climate
Definition
Weather pattern that occures in a particalar 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 occures when water freezes in the cracks of rocks and expands, cousing the rock to break apart.
Term
Leaching
Definition
Removel of minerals that have been dissolved in water.
Term
Mechanical Weathering
Definition
Phisical process that breaks rocks apart without changing thier chimical makeup can be caused by ice wedging, animal and plant roots.
Term
Oxidation
Definition
Chemical weathering process that occures 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 process that break rocks into smaller and smaller pices.
Term
Erosion
Definition
Process in which surface matierals are worn away and transported from one place to another by agents such as gravity water wind and glaciers.
Term
Deflatoin
Definition
A type of erosion that occures when wind blows over loose sediments removes small particales and leaves coarers sediment behind.
Term
Depoition
Definition
Droping of sediments that occure when an agent of erosion such as gravity a glacier wind or water losses its energy and can no longer carry its load.
Term
Dune
Definition
Mound formed when windblown sediments pile up behind an obstical common landform in desert areas.
Term
Moss Movement
Definition
Any type of erosion that occures as gravity moves matierals downslope.
Term
Slump
Definition
A type of mass movement that occures when a mass of materials moves down a curved slope.
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