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Transcript of Erosion!
The Changing Surface Of Earth
Mechanical weathering is settings of various processes weathering that will break apart into separate rocks.
Textbook, The globe and Mail
Biological weathering is the chemical breakdown of rock caused by living organisms such as plants,animals,bacteria and fungi.
Pictures Of Erosion
The Breaking On The Rock.
frost wedging is cased by water that freezes and thaws eventually the rock breaks off
Agents of erosion are glaciers, gravity, wind, and water. If erosion is caused by glaciers it will take thousands of years.
and some are
flash floods, and
Frost wedging happens when water freezes and thaws eventually the rock will break off this is called frost wedging.
Lots of gravity causes rocks to fall
down a cliff and break apart into lots of
Temperature: When the temperature hits below 0 the ice/water freezes and push the rock to the breaking point.
Water In Motion
Water in motion is one of the most powerful
and strong causes of erosion. Lots of sudden changes can occur as rivers erode their banks. It is so strong that it breaks off rocks.
P.E.I is losing 28cm
of land a year from
Here Is A Video Showing Erosion In PEI
Physical breakdown occurs when a plants root forms into a rock this is called physical breakdown. When it happens the root will stay in the rock.
Globe and Mail
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chemicals from bacteria can burn through rocks.