Soil
Soil Conservation
Weathering
Rocks
Again w/ Rocks
100
An ingredient in soil.
What is rock particles, air, water, or organic matter?
100
The wearing away of soil.
What is soil erosion?
100
The physical breakdown of rocks.
What is mechanical weathering?
100
The rock group that contains coal as an example.
What is sedimentary rocks?
100
The most common rock type.
What is sedimentary rock?
200
Decayed organic matter in soil.
What is humus?
200
One of the three human causes of soil erosion.
What is farming, mining or construction?
200
The form of weathering that changes the rock's composition.
What is chemical weathering?
200
The igneous rock that cools under the surface of the earth.
What is intrusive igneous?
200
Granite is an example of this rock type.
What is igneous rock?
300
One of the three groups soil is classified.
What are sand, silt and clay?
300
Planting different crops on the same field in different years.
What is crop rotation?
300
An example of this is a tree root growing down the crack of a rock.
What is plant root growth?
300
Rocks created from heat and pressure from parent rocks.
What is metamorphic rocks?
300
Molten rock
What is magma?
400
The last layer of soil
What is the C horizon or parent material
400
Rows of trees between fields to reduce the force of winds.
What is wind breaks?
400
The breakdown of rock by acidic water.
What is dissolving?
400
Material that settles out of wind or water.
What is sediment?
400
One of the three process that change rocks.
What are heat/pressure, weathering/erosion and melting?
500
One of the four properties of soil
What are texture, color, pore space, chemistry?
500
Planting crops along the curves of hills to prevent water running downhill.
What is contour plowing?
500
Sediment carried by moving water breaks up rocks by this process.
What is abrasion?
500
The pathways a rock can take to change forms are illustrated here.
What is the rock cycle?
500
When metamorphic rocks are formed the minerals of the parent rock will do this.
What is recrystallize?
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