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Mechanical Wheaterin

TermDefinition
Release of pressure The weight of rock layers on top cause pressure on rocks buried below the surface.Gravity can cause the top layers to be removed.
Ice freezing and thawing Ice breaking down rock into smaller pieces
Ice wedging When water seeps into cracks during warm weather .When temperature drops, the water freezes and expands. The ice then pushes against the sides of the cracks ,this causes the crack to widen.
Abrasion the grinding and wearing away of rock surfaces through the mechanical action of other rock or sand particles.
Wind Abrasion When wind blows sand and silt against exposed rock, the sand eventually wears away the rock’s surface.
Water Abrasion Water abrasion weathering happens when water causes fine particles and sediment to rub against rock, wearing it down.
Gravity Abrasion Abrasion also occurs when rocks fall on one another. You can imagine the forces rocks exert on each other as they tumble down a mountainside. In fact, anytime one rock hits another, abrasion takes place. Abrasion also occurs when rocks fall on one anot
Mechanical Wheathering the breakdown of rock into smaller pieces by physical means. Agents of mechanical weathering include ice, wind, water, gravity, plants, and even animals.
Plant Activity You may not think of plants as being strong, but some plants can easily break rocks. Have you ever seen sidewalks and streets that are cracked because of tree roots? Roots don’t grow fast, but they certainly are powerful! Plants often send their roots int
Animal Activity Believe it or not, earthworms cause a lot of weathering! They burrow through the soil and move soil particles around. This exposes fresh surfaces to continued weathering. Would you believe that some kinds of tropical worms move an estimated 100 metric ton
Created by: danimora
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