Mechanical Weathering
Ice wedging, abrasion, plants, and animals.
What are the causes of Mechanical Weathering?
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Changes the materials of a rock into new materials.
What is chemical weathering?
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This explains materials that have never been alive.
What are Inorganic parts of soil?
Page 159
The first and starting material of soil.
What is parent material?
Page 160
This explains what soil property can be described based on how light or dark it is.
What is the color property?
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Live in soil and create holes where water can enter and cause weathering.
What are animals?
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Combines with oxygen and other elements or molecules.
What is oxidation?
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This explains soil that was once part of an organism. Examples of this are leaves, dead insects, and waste products of animals that are in soil.
What is organic matter?
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The weather or temperature in an area.
What is climate?
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Describes how fast water enters soil.
What is Infiltration?
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Cause weathering by crumbling rocks, the roots grow and create cracks in the rocks.
What are plants?
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This explains what causes more chemical weathering.
What is acid rain that has a PH of 4.5 or less?
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This horizon has clay that was deposited below the upper layer.
What is B-Horizon?
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This explains the shape of Earth's surface.
What is topography?
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Measure of the ability of a soil to support plant growth.
What is fertility?
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What is abrasion?
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Most substances dissolve in this.
What is water?
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This horizon has most of the organic matter from the decay of roots.
What is A-Horizon?
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This explains time.
Weathering is constantly changing rocks and sediment during what?
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The hardness or softness of the soil.
What is consistency?
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Water enters a rock and expands as it freezes and eventually breaks the rock apart.
What is ice wedging?
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Breaks into smaller sodium ions and chlorine ions.
What happens when table salt dissolves in water?
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This horizon has a layer of weathered plant material.
What is C-Horizon?
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This explains what speeds up the process of soil formation.
What is biota?
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The amount of water in its soil pores.
What is soil moisture?
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