5 Agents of Mechanical Weathering

The 5 Agents of Mechanical Weathering

• Animal Actions 
• Freezing and Thawing
• Plant Growth 
• Release of Pressure
• Abrasion

Animal Actions

• animals that burry in the ground an loosen up the surface

Freezing and Thawing

• When water freezes and expands

Plant Growth

• as plant roots grow they force roots apart

Release and Pressure

• as erosion removes material from the surface of a rock 
• the more pressure on rock is reduced

Abrasion

• sand and other rock articles that are carried by wind,water
• or ice can wear away a rock's surface