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weathering
lunday
9
Science
7th Grade
09/29/2010

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Term
chemical weathering
Definition
occurs when chemical reactions dissolve the minerals in rock or change them into different minerals
Term
climate
Definition
weather pattern that occurs in a particular area over many year
Term
humus
Definition
dark-color decayed organic matter thst supplies nutrients to plants and is found mainly in topsoil
Term
ice wedging
Definition
mechanical weathering process that occurs when water freeze 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 weathering rock decayed organic matter mineral fragments water and air that can take thousandsof years to develop
Term
weathering
Definition
mechanical of chemical surface process that breaks rock into smaller and smaller pieces
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