Erosion,Deposition and Weathering
Erosion- Erosion is the transportation of weathered, or broken down materials. Wind and water can erode materials, and so can movements from the Earth. Water can carry the broken down rocks, and so can wind. A landslide is when lots of materials are carried down a steep hill by gravity. A mudslide is when water makes the side of a hill heavy, and carries it downward. Both are examples of erosion.
Deposition- Deposition is when sediment, and broken down substances are deposited, or layed down somewhere. This can happen in a river when the water slows and creates a new bank, or delta. When wind slows down it can also drop sediment.
Weathering- Weathering is where rocks and minerals are broken down into smaller and smaller pieces. Extreme heat and cold, water, and ice can all cause weathering. Water wears away rocks, and can dissolve them.