Weathering and Soil
The type of weathering in which rock is physically broken into smaller pieces.
Mechanical Weathering
Small, solid pieces of material that come from rocks or living things.
Sediment
A long, narrow bank of sand in a body of water
Sandbar
This occurs when rock and soil slide quickly down a steep slope.
Landslide
What are the 4 agents of erosion?
wind, water, gravity, glaciers
The process that breaks down rocks through chemical changes
Chemical Weathering
Occurs where the agents of erosion deposit, or lay down sediment.
Deposition
Sediment deposited where a river flows into an ocean or lake builds up a landform called a .......
Delta
What 2 things affect the rate of weathering?
The term that refers to the wearing away of rock by rock particles carried by water, ice, wind, or gravity
Abrasion
Material that is a dark-colored substance that forms as plants and animal remains decay
Humus
What is the main force that causes mass movements such as landslides and mudflows?
Gravity
A stream or river that flows into a larger river
the rapid downhill movement of a mixture of water, rock, and soil is known as a .....
Mudflow
A region that has a log of limestone near the surface, groundwater dissolves the limestone forming caves and sinkhole.
Karst Topography
For soil to begin forming, what must begin to weather?
Bedrock
When wind meets an obstacle, the result is usually a deposit of windblown sand called a....
Sand dune
A fan-shaped mass of material deposited by a stream when the slope of the land decreases sharply
Alluvial Fan
The loose, weathered material on Earth's surface in which plants grow.
Soil
This mass movement moves at a very slow speed
Which horizon of our soil has that most organic material?
Horizon A
This mass movement occurs when a mass of rock and soil suddenly slip down a slope.
Slump
the flat, wide area of land along a river is called a .....
Flood Plain
Mechanical and chemical weathering are similar in what ways?
They both wear down and break rock.
What states that processes that occur today are similar to those that occurred in the past?
(This must be spelled correctly)