Weathering
The process that breaks rock into smaller pieces
What is weathering?
The movement of sediment from one place to another
What is erosion?
The force that causes mass movement
What is gravity?
Water flowing over land after rain
What is runoff?
Rocks scraping the ground under a glacier
What is abrasion?
This type of weathering breaks rock physically without changing what it is made of
What is mechanical weathering?
The dropping of sediment in a new location
What is deposition?
Very slow downhill movement of soil
What is creep?
Small channels formed by runoff
What are rills?
When glaciers pull rocks from the ground
What is plucking?
This type of weathering changes the composition of rock
What is chemical weathering?
Water, wind, ice, and this force can all cause erosion
What is gravity?
Soil moving downhill in a curved motion
What is slump?
Where a river slows down and deposits sediment at an ocean or lake
What is a delta?
Mixed-size sediment deposited directly by glaciers
What is till?
Freezing and thawing that cracks rocks apart
What is frost wedging?
Deposition happens when water, wind, or ice does this
What is slows down / loses energy?
Rapid movement of large amounts of rock and soil
What is a landslide?
A fan-shaped deposit formed when a stream leaves a narrow valley
What is an alluvial fan?
A hole formed when the ground collapses after rock dissolves
What is a sinkhole?
Acid rain breaks down rock by doing this
What is dissolving rock?
Both erosion and deposition do this to Earth over time
What is change Earth’s surface?
Mass movement always moves material in this direction
What is downhill?
The movement of sediment along a beach by waves and currents
What is longshore drift?
Sinkholes form when this rock dissolves underground
What is limestone?