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Weathering

QuestionAnswer
weathering process that breaks down rock
erosion removal of rock particles by wind, water, ice or gravity
mechanical weathering rock is physically broken into smaller pieces
abrasion grinding away of rock
ice-wedging freezing and thawing of water in cracks of rock
chemical weathering break down rock through chemical changes
plant growth roots of plants force cracks in rock apart
animal actions animals burrow in ground and break rocks apart
release of pressure erosion moves material on surface of rock releasing pressure and cause rock to crack
water dissolves rocks
oxidation iron combines with oxygen in presence of water
carbon dioxide dissolves in water and seeps into soil forming an acid
lichens plant-like organisms that grow on rocks and produce acid
acid rain rain polluted with acids from the air
permeable material full of air spaces
Created by: jmeager