weathering
process that breaks down earth's rock and soil of Earth's crust
erosion
process that carries away rock and soil that has been weathered
Deposition
the process where sediments are dropped after being carried
Mechanical Weathering
breaking down without changing the chemical composition
Chemical Weathering
Breaking down by changing the chemical composition
Types of mechanical weathering
frost action, animals, or wind
Types of chemical weathering
Carbonation, hydrolysis, oxidation
Mechanical weathering preferred climate
Low temp and moisture
Chemical weathering preferred climate
High temp and moisture
Mass Movement
the transfer of rock and soil downslope due to gravity
How does gravity deposit sediments?
Unsorted and angular
Glacier
thick sheet of ice
Striation
scratch marks left by glaciers
Erratic
large boulder dropped by glacier
Drumlins
small hills of glacial sediments
How do glaciers erode?
abrasion and plucking
How are glacial sediments deposited?
unsorted angular
How does wind erode?
abrasion
How does wind deposit sediments?
sorted and smooth
How does waves erode?
abrasion
How do waves deposit sediments?
sorted and smooth
How does running water erode?
abrasion
How does running water deposit sediments?
sorted and smooth
Sand bar
A long underwater ridge formed by sand deposited offshore
Oxbow lake
a lake that is formed when a meander of a river is cut off from the main channel
floodplain
an area along a river that forms from sediments deposited when the river overflows its banks
delta
A landform made of sediment that is deposited where a river flows into an ocean or lake