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Related Flashcards
Related Topics
Cards In This Set
| Front | Back |
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Weathering
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the chemical
& physical processes that break down rock at Earth’s surface
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Erosion
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The process by which water,
ice, wind, or gravity moves weathered rock & soil
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Uniformitarianism
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the geologic
principle that that same geologic processes that operate today operated in the
past to change Earth’s surface
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Mechanical weathering
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the type of
weathering in which rock is physically broken into smaller pieces
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Abrasion
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The grinding away of rock
by other rock particles carried in water, ice, or wind
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Ice wedging
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Process that splits rock
when water seeps into cracks, then freezes and expands
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Chemical weathering
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The process that breaks
down rock through chemical changes
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Oxidation
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A chemical change in which
a substance combines with oxygen, as when iron oxidizes, forming rust
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Permeable
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Characteristic of a
material that is full of tiny, connect air spaces that water can seep through
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Soil
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The loose, weathered
material on Earth’s surface in which plants can grow
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Bedrock
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the solid layer
of rock beneath the soil
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Humus
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Dark- colored organic
material in soil
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Fertility
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A measure of how well soil
supports plant growth
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Loam
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rich, fertile
soil that is made up of about equal parts of clay, sand, and silt
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Soil horizon
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the layer of
soil that differs in color and texture from the layers above or below it
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