Shelby Watson
M/J Science
04.02

Example of Mechanical Weathering:

This is an example of mechanical weathering.  This type of weathering happens when a physical force tears apart or re-arranges rock formations.  This type of weathering requires no chemical reactions to take place, but is simply caused by a force of some type.

Example of Chemical Weathering:

Chemical weathering is when any chemical (in this example, it is rainwater) reacts with another substance (such as the minerals in rocks) causing erosion or change in the rocks structure and appearance.

Example of Wind Erosion:

Wind Erosion is the movement of material from one place to another. Sometimes it can be strong enough to move very big rocks. In this case it happened over an extremely long period of time.

Water Erosion:

This is an example of Water Erosion. Water erosion occurs when water flows over or drops onto a surface, causing it to wear away over time.

Glacier Erosion:  

Glacier erosion happens when ice moves through rocks and land.  It is a physical force normally caused by earthquakes.  This picture is a wonderful example of where ice moved between rocks.