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5 agents of Mechanical Weathering

Published on Nov 18, 2015

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1.

5 agents of Mechanical Weathering

By: Jeremiah
2.

Animal Actions

Photo by david__jones
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Animals that burrow in the ground-including moles, gophers

 prairie dogs, and some insects-loosen and break apart rocks in the soil
Photo by kwc
4.

Plant Growth

Plant roots grow and force the cracks in rock apart.
Photo by chema.foces
5.

Freezing and Thawing

Water seeps in the cracks and freezes making the crack bigger
Photo by Domiriel
6.

Release of pressure

  • erosion removes rock material from rock. pressure drops
  • this cause flakes of rock to break off 
Photo by bamalibrarylady
7.

Abrasion

wind blows off dust of rock which over time makes the rock smaller
Photo by mtigas

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