Weathering and Erosion

Deposition

occurs when agents of erosion drop the sediments they are carrying.

Chemical Weathering

occurs when chemicals react to dissolve the minerals or change them into different minerals

Mechanical Weathering

occurs when rocks are broken down by physical processes

Frost Action (Ice Wedging)

the force of freezing water which splits rocks apart. Type of mechanical weathering.

Weathering

the process that breaks down rocks and helps to form soil

Erosion

the process that moves sediments from one place to another

Abrasion

wearing away of rocks by wind or water. Type of mechanical weathering.

Plant Acids

Acids formed by the decay of plants and animals eat away rocks. Type of chemical weathering.

Sulfuric Acid (acid rain)

Acids from factories or volcanoes dissolve in rainwater and eat away at rocks and buildings. Type of chemical weathering.

Gravity

As rocks fall, they collide with each other and break apart. Type of mechanical weathering.

Carbonation

Carbonic acids dissolve rocks and form caves underground. Type of chemical weathering.

Oxidation

The chemical reaction of oxygen with other substances producing rust. Type of chemical weathering.

Hydrolysis

The chemical reaction of water with other substances. Type of chemical weathering.

Wetting & Drying

The constant swelling and shrinking caused by rain drying up which makes rocks crack. Type of mechanical weathering.

Joint Sheeting

The removal or addition of large masses of rock causes rocks to expand & crack. Type of mechanical weathering.

Organic activity

When roots grow or animals dig holes, rocks split apart. Type of mechanical weathering.