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Weathering and Erosion
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What is called when mud slides down a hill
Mud flow or Mudslide
What is it called when rocks slide down a hill
Rock slide
What are the 3 layers of soil
A Horizon, B Horizon, and C Horizon
What is humus
Dark colored substance formed by dead plants and animals
What is an example of water erosion?
Gullies, Rivers, Streams, Runoff, or Watershed.
What causes minerals on rocks to dissolve
acids
How do plants cause weathering
The roots put pressure on the rocks
Erosion is
Removal of weathered material
Oxygen and Iron can form
Rust
What is Oxidation
oxygen reacts to rocks and metals causing a chemical reaction
Abrasion is
Water and wind carry particles to scrap the surface of rocks
How does ice break rocks down?
The water in the rocks freezes and expands, forcing a crack to widen
Chemical Weathering is
Rocks break down due to chemical reaction
Mechanical Weathering is
Physical forces break down rocks
What are the 2 main types of weathering
Mechanical and Chemical
What is weathering
Process of rocks breaking down into pieces