Weathering
Soil profiles
Soil Types and Textures
Soil Erosion
Farming Conservation Practices
100
The two types of weathering
What is chemical and mechanical weathering?
100
also known as bedrock and is considered unweathered
What is parent rock?
100
This soil texture type has a gritty feel
What is sand
100
Word that means the movement of rock or soil from one place to another?
What is erosion?
100
Farmers use farming conservation practices to prevent this...
What is erosion?
200
frost wedging, unloading, and biological activity are all considered this type of weathering
What is mechanical weathering?
200
This soil horizon is also known as subsoil
What is the B horizon?
200
Name one of the four major components of soil (think about the pie chart)
What is air, mineral matter, water or humus?
200
This type of soil tends to erode the least due to its size
What is sand?
200
This conservation practice is done using rows of shrubs and trees to block the wind.
What is windbreaks?
300
A rock that has been changed into one or more new compounds is the result of this type of weathering
What is chemical weathering?
300
This soil horizon is composed of humus and litter
What is the O horizon?
300
This soil texture type is considered to be the smallest in size
What is clay?
300
Name a human activity that has caused an increase in soil erosion?
What is plowing for farming, clear cut logging or clearing land for construction?
300
This conservation practice is done on the side of a mountain or large hill
What is terrace farming?
400
Chemical weathering is most effective in this type of climate (___________and___________)
What is warm and humid (wet)?
400
This horizon is made of partially altered parent rock
What is the C horizon?
400
This soil texture type is considered to be very prone to water erosion (washes away easily)
What is silt?
400
Describe a way soil erosion affects soil negatively
What is soil nutrients or good top soil is washed or blown away
400
This conservation practice is found where water concentrates or flows and usually grass is planted permanently to reduce erosion
What is grass waterways?
500
This weathering process involves freezing and thawing of water
What is frost wedging?
500
the name given to material such as leaves and twigs on the ground
What is litter?
500
Soil texture is determined by this...
What is soil particle size?
500
This Asian country has the worst soil erosion problems in the world.
What is China?
500
Name two conservation practices that start with the letter "c"
What is crop rotation, contour farming, and cover crop. (only need 2)
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