Big 20 Vocabulary Unit 3A Weathering and Soil Characteristics

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Chemical weathering

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Weathering where rocks break down due to chemical reactions between the rock and either water, oxygen, acids, or bases

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Groundwater

Back

Water that is stored underground or away from the surface

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Abiotic

Back

Not living and never will

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Ice wedging

Back

A type of physical weathering that occurs when water freezes and expands in cracks in rocks, causing the rocks to break

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Acid precipitation

Back

Rain, snow, or fog with a pH less than 7 due to carbonic, sulfuric, or nitric acids in the atmosphere

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appearance

Back

A feature of matter that describes the way it physically looks on the surface

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carbonation

Back

A type of chemical weathering where carbon dioxide dissolves in water to form carbonic acid

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Surface water

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Water that exists above ground in reservoirs such as lakes or rivers

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Composition

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A feature of matter that describes what the matter is made/internal components

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Soil horizons

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The name given to the unique layers found in a soil profile