science
All About Weathering, erosion, deposition, and soil
Working together
Weathering, erosion, and deposition are the main forces behind creating the landscapes we see everyday.
Weathering
- the breaking down of rocks and other materials on Earth's surface
- Mechanical weathering
- Chemical weathering
- biochemical weathering
Mechanical weathering is when rock is physically broken down into smaller pieces.
Chemical weathering is the process by which rocks break down as a result of chemical reactions
Biological weathering is when rock is broken down by plants and animals
Erosion
The process by which wind, water, ice, or gravity transports sediment to one area to another
Two Landforms that have been formed by erosion
- Geo at selwicks bay
- The Grand Canyon: formed by Colorado River
Wave cut notch at Flamborough.
Deposition
Process in which sediments, soil, and rock are added to a landform or landmass
Landforms made by deposition
- Spurn Head Spit
- Sandbar on Lake Norman
Soil
The soil is 25% Air, 45% minerals, 25% water, and 5% OM
Soil is important because is provides support for plants and all living things need that
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