The process by which rock materials are broken down by the action of physical or chemical processes.

The mechanical breakdown of rocks into smaller pieces that does not change the chemical composition of the rock.

The grinding and wearing away of rock surfaces through the mechanical action of other rock or sand particles.

The process by which rocks break down as a result of chemical reactions.

A chemical reaction in which a material combines with oxygen to form a new material; in geology, this often turns iron-bearing rocks into rust.

Rain, sleet, or snow that contains a high concentration of acids, often because of the pollution of the atmosphere.

The process by which wind, water, ice, or gravity transports soil and sediment from one location to another.

The process in which material is laid down or settles.

An area along a river that forms from sediments deposited when the river overflows its banks.

A mass of material deposited in a triangular or fan shape at the mouth of a river or stream.

A fan-shaped mass of material deposited by a stream when the slope of the land decreases sharply.

The water that is beneath Earth's surface.

The boundary where a body of water and the land meet.

An area of the shoreline that is made up of deposited sediment.

A low ridge of sand deposited along the shore of a lake or sea by currents and waves.

A long ridge of sand or narrow island that lies parallel to the shore.

A mound of wind-deposited sand that moves as a result of wind action.

Fine-grained sediments of quartz, feldspar, hornblende, mica, and clay deposited by the wind.

The rock material carried and deposited by glaciers.

The slow downhill movement of weathered rock material.

The rapid mass movement of rock down a steep slope or cliff.

The sudden movement of rock and soil down a slope.

The flow of a mass of mud or rock and soil mixed with a large amount of water.

An area of land that rises very high above the surrounding land and that has a peak.

A large body of water surrounded by land.

A natural flowing watercourse, usually freshwater, flowing towards an ocean, sea, lake, or another river.

The outline of a coast, especially with regard to its shape and appearance.

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Weather, Erosion

Unit 8

Term	Definition
weathering	The process by which rock materials are broken down by the action of physical or chemical processes.
Physical Weathering	The mechanical breakdown of rocks into smaller pieces that does not change the chemical composition of the rock.
Abrasion	The grinding and wearing away of rock surfaces through the mechanical action of other rock or sand particles.
Chemical Weathering	The process by which rocks break down as a result of chemical reactions.
Oxidation	A chemical reaction in which a material combines with oxygen to form a new material; in geology, this often turns iron-bearing rocks into rust.
Acid Precipitation	Rain, sleet, or snow that contains a high concentration of acids, often because of the pollution of the atmosphere.
Erosion	The process by which wind, water, ice, or gravity transports soil and sediment from one location to another.
Deposition	The process in which material is laid down or settles.
Floodplain	An area along a river that forms from sediments deposited when the river overflows its banks.
Delta	A mass of material deposited in a triangular or fan shape at the mouth of a river or stream.
Alluvial Fan	A fan-shaped mass of material deposited by a stream when the slope of the land decreases sharply.
Groundwater	The water that is beneath Earth's surface.
Shoreline	The boundary where a body of water and the land meet.
Beach	An area of the shoreline that is made up of deposited sediment.
Sandbar	A low ridge of sand deposited along the shore of a lake or sea by currents and waves.
Barrier Island	A long ridge of sand or narrow island that lies parallel to the shore.
Dune	A mound of wind-deposited sand that moves as a result of wind action.
Loess	Fine-grained sediments of quartz, feldspar, hornblende, mica, and clay deposited by the wind.
Glacier	A large mass of moving ice.
Glacial Drift	The rock material carried and deposited by glaciers.
Creep	The slow downhill movement of weathered rock material.
Rockfall	The rapid mass movement of rock down a steep slope or cliff.
Landslide	The sudden movement of rock and soil down a slope.
Mudflow	The flow of a mass of mud or rock and soil mixed with a large amount of water.
Mountain	An area of land that rises very high above the surrounding land and that has a peak.
Lake	A large body of water surrounded by land.
River	A natural flowing watercourse, usually freshwater, flowing towards an ocean, sea, lake, or another river.
Coastline	The outline of a coast, especially with regard to its shape and appearance.

Created by: Summer Cali Taylor Hudson

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