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Chapter 5: The Biogeochemical Cycles

Chapter 5: The Biogeochemical Cycles

Chapter 5: The Biogeochemical Cycles

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Period 1<br />

10/5<br />

<strong>The</strong> Rock Cycle<br />

• Physical weathering<br />

(freeze, thaw)<br />

produces sediment<br />

such as gravel, sand<br />

and silt.<br />

• Chemical weathering<br />

occurs when weak<br />

acids in water dissolve<br />

chemicals from rocks.

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