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100


the process of moving load or material by wind, water, or other natural agents.

Erosion

100

removal of fine sediment by wind

deflation

100

The grinding away of rock by other rock particles carried in water, ice, or wind

What is abrasion
100

water held underground in the soil or in pores and crevices in rock.

groundwater

100

measure of the change in elevation

 gradient

200

small, solid pieces of material that come from rocks or living things

sediment

200

thick deposits of fine-grained sediments often found far away from their source

loess

200

Tiny grooves in the ground made from runoff

Rills

200

A wide, sloping deposit of sediment formed where a stream leaves a mountain range

Alluvial Fan

200

A winding river

Meander

300

Process in which sediment is laid down in new locations.

Deposition

300

Rills turn into larger grooves called ...

Gullies

300

What conditions are necessary for a glacier to form?

snow and low temperature

300

A landform made of sediment that is deposited where a river flows into an ocean or lake

Delta

300

form when the top of sea arches collapse and leave behind isolated columns of rock

sea stacks

400

the force that moves rock and other materials downhill.

gravity

400

extremely slow movement of material downslope 

creep

400

A flat piece of ground next to a river that is full of nutrient-rich soil

floodplain 

400

When a meander is cut off it turns into a(n) ...

Oxbow Lake

400

form when waves erode sea caves until a hole cuts through

sea arches

500

  2 rapid mass movements

landslide and mudflow

500

Name 4 of the Agents of Erosion

Wind, water, gravity, ice

500

What are two features that result from deposition along a river?

Alluvial fans, river deltas

500

What are two main sources of the sediment that rivers and streams carry?

Mass movement and Runoff.

500

A deposit of sand that branches out into the ocean

A spit