Chemistry 2

Front 1

Chemical weathering

Back 1

Process by which rocks and minerals undergo changes in their composition due to chemical reactions with agents such a acids, water, oxygen, and carbon dioxide.

Front 2

Erosion

Back 2

Movement of weathered materials from one location to another by agents such as water, wind, glaciers, and gravity.

Front 3

Exfoliation

Back 3

Mechanical weathering process in which outer rock layers are stripped away, often resulting in dome-shaped formations.

Front 4

Frost wedging

Back 4

Mechanical weathering process that occurs when water repeatedly freezes and thaws in the cracks of rocks, often resulting in rocks splitting.

Front 5

Mechanical weathering

Back 5

Process that breaks down rocks and minerals into smaller pieces but does not involve any change I'm their composition.

Front 6

Deposition

Back 6

Occurs when sediments are laid down on the ground or sink to the bottom of a body of water.

Front 7

Soil

Back 7

Loose covering of weathered rock and decayed organic matter overlying Earth's bedrock that is characterized by texture, fertility, and color and whose composition is determined by its parent rock environment conditions.

Front 8

Soil horizon

Back 8

A distinct layer within a soil profile.

Front 9

Soil profile

Back 9

Vertical sequence of soil layers, containing horizon A (topsoil), horizon B (subsoil), and horizon C (weathered parent material)

Front 10

Transported soil

Back 10

Soil that has been moved away from it's parent material by water, wind, or a glacier.

Front 11

Residual soil

Back 11

Soil located above it's parent bedrock.

Front 12

Mass movement

Back 12

Downslope movement of Earth materials, due to gravity, that can occur suddenly or very slowly, depending on the weight of the material, it's resistance to sliding, and whether a trigger, such as an earthquake, is involved.

Front 13

Abrasion

Back 13

Process of erosion in which wind-blown or waterborne particles, such as sand, scrape against rock surfaces or other materials and wear them away.

Front 14

Deflation

Back 14

Lowering of land surface caused by wind erosion of loose surface particals, often leaving coarse sediments behind.

Front 15

Dune

Back 15

Pile of wind-blown sand that develops over time, whose shape depends on sand availability, wind velocity and direction, and amount of vegetation present.

Front 16

Ventifact

Back 16

Rock shaped by wind-blown sediment.

Front 17

Continental glacier

Back 17

Glacier that forms over a broad, continent-sized area of land and usually spreads out from it's center.

Front 18

Valley glacier

Back 18

Glacier that forms in a valley in a mountainous area and widens V-shaped stream valleys into U-shaped galcial valleys as it moves downslope.

Front 19

Creep

Back 19

Slow, steady downhill movement of loose weathered Earth materials, especially soils, causing objects on a slope to tilt.

Front 20

Slump

Back 20

Mass movement that occurs when Earth materials in a landslide rotate and slide along a curved surface, leaving a crescent-shaped scar on a slope.