Help
Options
Didn't know it?
click below
click below
Knew it?
click below
click below
Don't Know
Remaining cards (0)
Know
retry
shuffle
restart
0:00
Embed Code - If you would like this activity on your web page, copy the script below and paste it into your web page.
Normal Size Small Size show me how
Normal Size Small Size show me how
unit 8
| Term | Definition |
|---|---|
| weathering | Weathering describes the breaking down or dissolving of rocks and minerals on the surface of Earth. Water, ice, acids, salts, plants, animals and changes in temperature are all agents of weathering. |
| physical weathering | Physical weathering, also called mechanical weathering, is a process that causes the disintegration of rocks, mineral, and soils without chemical change. |
| abrasion | Abrasion is another form of mechanical weathering. In abrasion, one rock bumps against another rock. |
| chemical weathering | Chemical weathering is a natural process that breaks down rocks through chemical reactions. It is influenced by various factors, including the type of minerals present in the rocks. |
| oxidation | A chemical reaction that takes place when a substance comes into contact with oxygen or another oxidizing substance. |
| acid precipitation | precipitation that has a pH lower than 5.61 which is the pH expected in distilled water exposed to the atmosphere. |
| erosion | Erosion is the geological process in which earthen materials are worn away and transported by natural forces such as wind or water. |
| deposition | Deposition is the laying down of sediment carried by wind, flowing water, the sea or ice. |
| floodplain | A floodplain or flood plain or bottom lands is an area of land adjacent to a river. |
| delta | the flat, low-lying plain that sometimes forms at the mouth of a river from deposits of sediments. |
| alluvial fan | An alluvial fan is a build-up of river or stream (alluvial) sediments that form where streams emerge from hill country and onto a valley floor |
| groundwater | Groundwater is water that exists underground in saturated zones beneath the land surface. The upper surface of the saturated zone is called the water table. |
| shoreline | The shoreline is the place where a large body of water, like an ocean, lake, or river, meets the land. |
| beach | a shore of a body of water covered by sand, gravel, or larger rock fragments. |
| sandbar | a long, narrow sandbank, especially at the mouth of a river. |
| barrier island | A barrier island is defined as a long, offshore, dune-covered deposit of sand lying roughly parallel to and separated from the mainland by a shallow sound (lagoon) and/or salt marsh |
| dune | A dune is a mound of sand this is formed by the wind, usually along the beach or in a desert. Dunes form when wind blows sand into a sheltered area behind an obstacle |
| loess | a fine usually yellowish brown soil found in North America, Europe, and Asia and believed to be chiefly deposited by the wind. |
| glacier | A glacier is a large, perennial accumulation of crystalline ice, snow, rock, sediment, and often liquid water that originates on land and moves down slope under the influence of its own weight and gravity. |
| glacial drift | Glacial drift refers to spoil deposited by glaciers, which includes materials such as till and other sediments transported by glacial processes. |
| creep | Creep is the imperceptibly slow, steady, downward movement of slope-forming soil or rock. |
| rockfall | Rockfalls are abrupt movements of masses of geologic materials, such as rocks and boulders, which become detached from steep slopes or cliffs |
| landslide | A landslide is defined as the movement of a mass of rock, debris, or earth down a slope. Landslides are a type of "mass wasting," which denotes any down-slope movement of soil and rock under the direct influence of gravity. |
| mudflow | A general term for a mass-movement landform and a process characterized by a flowing mass of predominantly fine-grained earth material possessing a high degree of fluidity during movement. |
| mountain | a large natural elevation of the earth's surface rising abruptly from the surrounding level; a large steep hill. |
| lake | A lake is often a naturally occurring, relatively large and fixed body of water on or near the Earth's surface. |
| river | Definition. A river is a natural flow of freshwater that flows on or through land towards another body of water downhill. |
| coastline | he coastline is a line that is considered the boundary between sea and land. This is the common definition for Coastline, other definitions can be discussed in the article. The terms coastline and shoreline are often used indiscriminately as synonyms. |
Created by:
spxcw btw