Show:
Processes
Exposure
Whoosh!
Landforms
Deposits
100
a destructive process that breaks down and changes rocks at Earth's surface.
What is weathering?
100
this process occurs when water freezes, expands and melts in the cracks of rocks.
What is frost wedging?
100
the topmost soil layer
What is Horizon A?
100
sediment moves slowly downhill pulled by gravity.
What is creep?
100
occurs when the water level in a river rises above its usual height and overflows the sides of its banks.
What is a flood?
200
occurs when rocks and minerals at Earth's surface are weakened and broken down from exposure to water and gases in the atmosphere.
What is chemical weathering?
200
a mixture of weathered rock, minerals, and organic matter
What is soil?
200
the process of moving weathered material from one location to another
What is erosion?
200
curves in a stream
What are meanders?
200
a wide flat valley that is located along the sides of some rivers and streams.
What is a floodplain?
300
the breaking of rock into smaller pieces without changing its mineral composition
What is physical weathering?
300
a soil that develops from granite
What is sandy soil?
300
when sediments are laid down in a new location
What is deposition?
300
a large triangular shaped deposit that occurs when a stream or river reaches a large body of water, slows down and drops sediment.
What is a delta
300
stream beds that contain water only during times of heavy rains or floods.
What is an arroyo?
400
This forms when feldspar and acidic rain water mix.
What is clay?
400
a soil that develops from basalt
What is clay soil?
400
a form od soil erosion caused by gravity
What is mass wasting?
400
a large triangular deposit dropped by rivers and streams leaving narrow canyons out onto flat plains.
What is an alluvial fan?
400
U shaped valleys, hanging valleys, waterfalls and deposition features like moraines and tills
What are evidence of glacial erosion?
500
this forms when water and carbon dioxide mix.
What is carbonic acid?
500
a process that occurs when oxygen comes into contact with metals.
What is oxidation or corrosion?
500
rapid, gravity caused events that move soil, rock and boulders.
What are landslides?
500
land form caused by the cutting action of waves at the base of rocks along coasts.
What is a cliff?
500
windblown silt caused by glacial erosion
What is Loess?