soil erosion and weathering
DESCRIPTION
this simple powerpoint presentation is about soil erosion and weathering. it also contains some videos which will help in further explanation of the topicTRANSCRIPT
![Page 1: Soil erosion and weathering](https://reader035.vdocuments.us/reader035/viewer/2022080212/559b27461a28ab4f488b4819/html5/thumbnails/1.jpg)
S C I E N C E 4 C L A S S
SOIL EROSION
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SOIL EROSION
![Page 3: Soil erosion and weathering](https://reader035.vdocuments.us/reader035/viewer/2022080212/559b27461a28ab4f488b4819/html5/thumbnails/3.jpg)
TWO SECRET CODES
EROSION
• Is the process of
wearing away of rocks
and soil because of the
action of some agents
such as wind, water,
gravity, animals, and
people.
WEATHERING
• The process of breaking
down rocks.
• Chemical Weathering
• Mechanical Weathering
![Page 4: Soil erosion and weathering](https://reader035.vdocuments.us/reader035/viewer/2022080212/559b27461a28ab4f488b4819/html5/thumbnails/4.jpg)
SOIL EROSION AND WEATHERING
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TYPES OF WEATHERING
CHEMICAL WEATHERING
• It involves a reaction of substances, such as an acid, to the minerals that make up the rock
• Oxygen in air may also cause chemical weathering when it interacts with iron in soil. Iron oxide or rust is formed.
MECHANICAL WEATHERING
• Occurs when agents
such as animals, plants,
water, wind, and
people break rocks
physically into pieces
![Page 6: Soil erosion and weathering](https://reader035.vdocuments.us/reader035/viewer/2022080212/559b27461a28ab4f488b4819/html5/thumbnails/6.jpg)
CAUSES OF MECHANICAL WEATHERING
WATER WIND PEOPLE
BURROWING ANIMALS
BIG ROOTS OF PLANTS
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AGENTS OF SOIL EROSION
RUNNING WATER
WIND
GRAVITY
ANIMALS
HUMANS