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There are three different types of weathering, as seen in the video. They are called mechanical, biological, and chemical weathering.

Mechanical Weathering - Mechanical weathering is the process in which a rock is broken into smaller pieces that still have traits of the rock they were made from. This can be caused by extreme weather changes and more. The most known, however, is through water. When it rains/snows/storms and water enters a rock, at night, it will freeze into ice and expand. During the day, it will melt. This process will go on until the rock breaks apart.

Chemical Weathering - Chemical weathering results in the weathering of the material. This is mainly caused by water. Chemical weathering is very inactive, but even a small amount of dissolved materials can make it very active. In industrial areas, water in the clouds is dissolved with Nitrogen Oxide and Sulfur Dioxide to create acid rain. This causes damage to the soil, plant life, and buildings.

Biological Weathering - Biological weathering is weathering caused by animals and plants. When a tree grows, the roots extend in broken soil and rock, but as it ages, it begins to pressure the soil and rock to break it. Burrowing animals make holes into the ground for shelter, but when they do that, they expose the soil to types of weathering, like climate change.

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This is a video on deposition. Please watch it.

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Sand dunes are a great example of deposition. Sand (a type of soil) is constantly being moved around by the wind to different locations, creating sand dunes. Sand dunes can also have the wind take sand from them to be transported to other parts of the desert (and to other sand dunes!).

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Deposition is the transport of already weathered or eroded rocks, minerals, and/or soils to be added on to a land form/landmass to create sediment layers. These sediments are transported by natural agents on the earth.

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This is a video on erosion. Please watch it.

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The Grand Canyon is a great example of erosion. The natural rock of the canyon are not naturally smooth and do not bend the way it does in the given picture. There is also a river at the bottom of the canyon, giving the clue that erosion by water has taken place (and is still taking place) on the rock.

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Erosion is the taking away of natural rocks, soils, and minerals due to ice, water, air, organisms, or any other natural agent on the earth. Weathering is NOT erosion because weathering is for natural OR artificial rock, soil, and minerals.

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This is a video on weathering. Please watch it.

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Old wood farms are a good example of weathering. As the wood ages, wind and rain begin to erode and crack the wood. Even as the wind and rain begin to attack the wood, termites (wood-eating insects) also begin to feed on the wood due to the nutrients in it.

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Weathering is the breaking down of natural or artificial rocks, soils, minerals, wood, and other objects by coming into contact with natural agents on Earth. Erosion is NOT weathering because erosion is the breaking down of only natural rocks, soils, and minerals.