The breakdown of rock material into smaller pieces, by a physical or chemical process.
What is weathering
100
A deep channel cut into a landscape over time by erosion from a stream or river.
What is a canyon
100
A finger-shaped projection formed from eroded sea cliffs.
What is a headland
100
Mounds of wind-deposited sand
What is a dune
100
The process by which sediment is moved from one place to another. Water, wind, ice, and gravity can cause this.
What is erosion
200
The process by which rock is broken down by physical changes such as temperature changes, pressure changes, plant and animal actions, water, wind, and gravity.
What is physical weathering
200
A flat area formed by many layers of deposited sediment.
What is a floodplain
200
A sea cliff that has been eroded down to the waterline to form an underwater "bench"
What is a wave cut platform
200
Thick deposits of windblown, fine-grained sediment.
What is loess
200
The extremely slow movement of material or sediment down a slope.
What is creep
300
The breaking down or wearing away of rock material by the mechanical action of other rock.
What is abrasion
300
A fan-shaped pattern formed when a stream deposits its load of sediment.
What is a delta
300
An area of shoreline made up of sediment deposited by waves and currents.
What is a beach
300
A large mass of moving ice that forms by the compacting of snow.
What is a glacier
300
Loose rocks falling down a steep slope.
What is rockfall
400
The breakdown of rocks by chemical reactions. Agents include oxygen and acids.
What is chemical weathering
400
A curve or bend in a stream. Erosion occurs on the outer bank, deposition occurs on the inner bank.
What is a meander
400
An underwater ridge of sand, gravel, or shell material.
What is a sandbar
400
All materials or sediment carried and deposited by a glacier.
What is glacial drift
400
The sudden and rapid movement of a lot of material down a slope.
What is a landslide
500
Chemicals that are formed when fossil fuels are burned combine with with water in the atmosphere; this mixture then falls to earth.
What is acid precipitation
500
A crescent- or horseshoe-shaped lake that forms from a cut-off meander.
What is an oxbow lake
500
A long, narrow island usually made of sand, that forms parallel to the shoreline.
What is a barrier island.
500
Tiny grains of broken-down rock
What is sediment
500
The rapid movement of a large amount of mud that forms when a large amount of water mixes with soil and rocks.