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

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Term
chemical weathering
Definition
occurs when when chemical reactions dissolve the minerals in rocks or change them in to different minerals
Term
climate
Definition
weather pattern that occurs in a certan part of a area over many years
Term
humus
Definition
dark colored decayed organic matter that supplies nutrients to plants and is found in mainly top soils
Term
ice wedging
Definition
mechanical weathering process that occurs when water freezes in the cracks of rock and expand causig the rock to break apart
Term
leaching
Definition
removal of minerals that have been dissiled in water
Term
mechanical weathering
Definition
physical proccess that breaks rocks apart without changing there chemical make up
Term
oxidation
Definition
chemical weathering processes that occurs when metallic materials is exposed to oxygen and water over time
Term
soil
Definition
a mix of weatheed rock decyed organic matter, mineral fragments, water and air that can take thousand s of years to devolop
Term
weathering
Definition
mechanical or chemical surface proccesses that break rocks into smaller and smaller pieces
Term
erosion
Definition
processin whichin which surface matierals are worn away and trans ported from one place to enother by agents such as gravity wat4er wind and glaciers
Term
deflation
Definition
a type of erosion that occurs when wind blows over loose sedimats removes small particales and leaves coarser
Term
depositon
Definition
dropping of sedimats that that occurs whan aagent of erosion a gravity and/or a glacier wind or water loses its enrgey and can no longer work
Term
dune
Definition
mound formed when windblown sedimats piled up behind an obsticale common landform in dessert areas
Term
mass movement
Definition
any type of erosion that occurs as gravity moves gravity move s matirerals down slope
Term
slump
Definition
a type of mass movementthat occurs when a mass of materail that moves down a curved slope
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