Erosion 9 07

WeatheringWeathering

WeatheringWeatheringWhen rocks are broken into When rocks are broken into

smaller pieces (called sediment) smaller pieces (called sediment) by weather, tumbling in moving by weather, tumbling in moving water, banging into each other, water, banging into each other, repeated freezing and thawing, repeated freezing and thawing, tree roots, or chemical changes tree roots, or chemical changes such as acid rain.such as acid rain.

ErosionErosion

ErosionErosion When rock, sediment, or soil is When rock, sediment, or soil is

transported (moved) from one transported (moved) from one place to another by:place to another by:


transported (moved) from one place transported (moved) from one place to another by:to another by:Moving waterMoving water (rain runoff, rivers, etc.)(rain runoff, rivers, etc.)


transported (moved) from one transported (moved) from one place to another by:place to another by:

Moving waterMoving water (rain runoff, rivers, etc.)(rain runoff, rivers, etc.)

WindWind


transported (moved) from one transported (moved) from one place to another by:place to another by:Moving waterMoving water (rain runoff, rivers, etc.)(rain runoff, rivers, etc.)

WindWindGlaciersGlaciers (thick ice sheets)(thick ice sheets)


transported (moved) from one transported (moved) from one place to another by:place to another by:Moving waterMoving water (rain runoff, rivers, etc.)(rain runoff, rivers, etc.)

WindWindGlaciersGlaciers (thick ice sheets)(thick ice sheets)

LandslidesLandslides

Some effects Some effects of of

ErosionErosion

DepositionDeposition

DepositionDeposition When the material (sediment, soil, etc.) that has been eroded stops moving and is allowed to settle to the bottom, such as at a delta where a river flows into the ocean.

Sediment is

deposited in

layers

Erosion 9 07

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