Show:
Changes to the Earth
Soil
Soil 2
Erosion
Erosion 2
100
Shapes of the earth surface
What is Landforms
100
A loose material at the surface of the earth
What is soil
100
This forms in layers
What is soil
100
The process that breaks down or changes rocks
What is weathering
100
small hills formed by melting glaciers.
What are moraines
200
can push the land upward
What is volcano and earthquake
200
Soil is made up of mostly bits of this
What is weathered rock.
200
The three layers of soil
What is topsoil, subsoil and bedrock
200
Small bits of weathered material
What is sediment
200
A sudden downhill movement of soil and rocks
What is landslide
300
A source that can wear away rocks, soil, or other substance.
What is Water
300
Soil is made up four parts
What are weathered rock, water, air and humus
300
This layer of soil contain humus
What is topsoil
300
The moving of bits of weathered material from on place to another.
What is erosion
300
A force the affects erosion
What is gravity
400
the process that breaks down or changes rocks.
What is weathering
400
What is decayed plant and animal material?
What is humus
400
This layer of soil contains coarse rocks that have been weathered.
What is Subsoil
400
The dropping of sediment
What is depostion
400
A large amount of snow and ice that moves quickly down a mountain.
What is an avalanche
500
The expanding of water that moves the rocks and soil around it.
What is frost action
500
Scientist have classified bits of weather rock into three groups.
What are sand, silt, and clay bits
500
This soil has soild rock that has not been weathered
What is bedrock
500
Sediment building up at the mouth of the river makes the river?
What is shallow
500
An area of sediment found at the mouth of a river
What is delta