Weathering Review

a type of weathering in which the surface of a rock is scratched and physically worn away.

• Abrasion

• Chemical Weathering

• Clay Formation

• Climate

a process in which rocks are transformed and worn away by chemical reactions. o Examples include the dissolving of limestone and the transformation of various minerals into clay

• Abrasion

• Chemical Weathering

• Clay Formation

• Climate

chemical weathering of minerals into clay. It is generally much softer than the original minerals. When it rains, It absorbs water and expands, which can break the rock apart. A formation is also called hydrolysis

• Abrasion

• Chemical Weathering

• Clay Formation

• Climate

the average weather conditions in an area. Includes factors such as average temperature, precipitation (rain and snow), humidity, cloud cover, and wind

• Abrasion

• Chemical Weathering

• Clay Formation

• Climate

– a process in which a solid becomes a part of a liquid to form a solution. For example, limestone can be dissolved by acidic water, forming caves and other features. Dissolving limestone is also called carbonation or solution weathering

• Dissolving

• Frost wedging

• Granite

• Limestone

a process of mechanical weathering in which water seeps into cracks and freezes. Because water expands when it freezes, the ice can put pressure on the rock, causing the crack to enlarge

• Dissolving

• Frost wedging

• Granite

• Limestone

– a hard rock made of interlocking crystals of quartz, feldspar, mica, and other minerals. is an igneous rock. It forms from the slow cooling of magma deep below Earth’s surface

• Dissolving

• Frost wedging

• Granite

• Limestone

a rock made of calcium carbonate. is a sedimentary rock. It is made up of the cemented skeletons and shells of marine organisms, including coral

• Dissolving

• Frost wedging

• Granite

• Limestone

a process in which rocks are physically worn away without changing their chemical composition. Examples include abrasion, frost wedging, exfoliation, and salt weathering. is also called physical weathering

• Mechanical weathering

• Rusting

• Sandstone

• Shale

a type of chemical weathering in which iron reacts with oxygen to produce iron oxide, or rust. is also called oxidation. is porous and flaky compared to the original iron and can cause rocks to fall apart.

• Mechanical weathering

• Rusting

• Sandstone

• Shale