Weathering and erosion
What is weathering?
What is erosion?
Erosion by wind
Wind erosion is when it picks up and carries tiny particles like sand and dirt and moves it around. It happens when the strength of the lifting air is able to lift up the object and exceed the gravity of the particle on the surface.
An example is sand dunes which wind erosion can create and destroy them. Another example of wind erosion are rock formations in deserts which wind moves air through to change the structures.
Erosion by water
Erosion by gravity
Erosion by glaciers
This picture is an example of physical/mechanical weathering because it shows a rock breaking apart because of water freezing and thawing.
This picture is an example of chemical weathering because it shows a rock that has been worn down by chemicals over time
This picture is an example of biological weathering because it shows a tree that grew through a rock and cracked it
This picture is an example of wind erosion because it shows how wind can blow sand to form and move dunes.
This picture is an example of water erosion because it shows how water flowed through to form this canyon.
This is an example of erosion by gravity because it shows rocks and soil being pulled downward.