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Weathering Notes
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Weathering - ________________________________________________________
o Two Kinds –
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Mechanical Weathering - ______________________________________
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4 types –
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1. Abrasion - __________________________________________
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2. Frost Wedging - _____________________________________
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3. Organic Activity - ____________________________________
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4. Thermal Expansion - __________________________________
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Chemical Weathering - ________________________________________
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4 types –
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1. Oxidation - _________________________________________
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2. Carbonation - _______________________________________
o Gets into the soil and dissolves the rocks beneath
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3. Sulfuric Acid - ______________________________________
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Hydrolysis - __________________________________________
o Water can dissolve minerals or form new minerals
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Factors that affect the rate of weathering
o 1. Composition of the rock - ________________________________________
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Sandstone is easily weathered
Moh’s Scale = 3.5
o 2. Climate - ____________________________________________________
o 3. Surface Area - ________________________________________________
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