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Download Weathering BREAKDOWN of ROCK exposed at the Earth`s surface
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Weathering is the BREAKDOWN of ROCK exposed at the Earth’s surface 2 types Mechanical Weathering Chemical Weathering Physical Process Chemical Process Breakdown of rock into smaller pieces of the same material without changing its composition Breakdown of rock that takes place when minerals are changed into different substances 4 Types of Mechanical Weathering Frost Wedging Water gets into cracks Abrasion FREEZES Wearing away of rock from GRINDING against other rocks EXPANDS in THAWS STREAMS ReFREEZES BEACHES WIND Cold Climates GLACIERS Plants PLANT ROOTS get into cracks in Rocks and WEDGE them apart Upward Expansion Rocks EXPAND when they get near the surface and break apart Expansion caused by removal of overlying rock Rocks break in layers parallel to surface called exfoliation
