Web Results


Mechanical weathering results from changes in temperature and pressure surrounding rocks. The expansion or contraction of air and pressure creates fractures in rock surfaces, ultim...



Physical weathering, also known as mechanical weathering, is the class of processes that causes the disintegration of rocks without chemical change.

Geography4Kids.com: Biosphere: Weathering


That movement can cause rocks to crack and break apart. Roots and ... Hydrolysis usually causes rocks to expand and then mechanical weathering can begin.

Mechanical-weathering | Define Mechanical-weathering at ...


any of the various weathering processes that cause physical disintegration of exposed rock without any change in the chemical composition of the rock: Collision ...

Examples of Mechanical Weathering | Education.com


Aug 27, 2013 ... Examples of mechanical weathering are easy to find in your own neighborhood. Look for cracks in the sidewalk caused by heating and cooling.

Mechanical/chemical weathering and soil formation


Mechanical/physical weathering - physical disintegration of a rock into smaller ... Thermal Expansion and Contraction - heating causes rock to expand, cooling ...

What causes mechanical weathering - Answers.com


Mechanical weathering is caused by impact, expansion or contraction of materials, and biological factors.

Weathering of Rocks - Water Encyclopedia


Mechanical weathering includes processes that fragment and disintegrate rocks ... of freezing and thawing in rocks containing water will cause them to fragment ...

Historical Geology/Mechanical weathering and erosion - Wikibooks ...


1 Definitions; 2 Mechanical weathering; 3 Mechanical erosion; 4 Modes of ... of mechanical erosion are: gravity; aeolian processes (i.e. those caused by the ...



A third mechanism of mechanical weathering is THERMAL EXPANSION AND ... many crystals, this expansion and contraction can cause mechanical fracturing.

Helpful Resources

Mechanical Weathering - Geology For Kids - By KidsGeo.com


Mechanical weathering takes place when rocks are broken down without any ... Over time, these salt deposits build up, creating pressure that can cause rocks to  ...

Mechanical and chemical forces break down rocks. - ClassZone


at which weathering occurs. KEY CONCEPT. Mechanical and chemical forces break down rocks. EXPLORE Mechanical Weathering. What causes rocks to ...

Mechanical Weathering | CK-12 Foundation


Abrasion is another type of mechanical weathering. With abrasion, one rock bumps against another rock. Gravity causes abrasion as a rock tumbles down a ...

Mechanical Weathering: Definition, Process, Types & Examples ...


Over time the forces of the natural environment cause rocks to physically break down in a process called mechanical weathering. Learn how factors,...

What Causes Mechanical Weathering - Buzzle


Jun 22, 2011 ... Mechanical weathering is a process where big rocks are broken down to smaller fragments due to physical forces acting on them. Read more ...