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

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Term
Cimical weathering
Definition
occurs when chimical reactions dissolove the minirals in rocks or chang them into different 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 its found manily in topsoil
Term
Ice wedging
Definition
machanical 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 disoved in water.
Term
mechanical weathering
Definition
physical process that breaks rocks apart without changing thir cimical makeup.
Term
oxidation
Definition
chimical weathering process that occurs when metallic material is expossed to oxygen and water over time.
Term
soil
Definition
mixture of weatered rock decayed organic matter mineral fragments water and air that can take thousands of years to develop.
Term
weathering
Definition
mechanical or chimical surface process that break rocks into smaller and smaller pieces.
Term
erosion
Definition
process in witch surface materials are worn away transported from one place to another by agents such as gravity water wind and glacier.
Term
deflation
Definition
a type of erosion that ocours when wind over loose sediments removes smalls particals and leaves coaser
Term
deposition
Definition
Term
dune
Definition
Term
mass move ment
Definition
Term
slump
Definition
a type of mass movement that occurs when a mass of material moves down a curved slope
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