By Will Fricker
Clastic Sedimentary rocks.
Clastic rocks are compacted sediments, and they are categorized by their size. An example of a clastic rock is Conglomerate.
Biochemical Sedimentary Rocks
Rocks that form from plant or animal remains, such as shells.
Mechanical weathering is the breakdown of rocks by water, wind, ice, and gravity. If water splashes against rocks enough, they will break down. If wind is always hitting a rock, it will whip sand on it, causing it to break down (or it could break it down on its own). When water freezes in a small crack and then freezes over night, it will expand, and it will widen the crack.
This is a diagram that shows the process of ice wedging.
Wind causing Weathering
This is an example of wind carving a tunnel through rocks.
This picture shows a rock that was broken down by water.
Chemical reactions break down the bonds holding the rocks together, causing them to fall apart, forming smaller and smaller pieces. The differrent types are Oxidation rusting, Carbonation, and hydrolysis.
This is an example of rocks being broken down by oxidation.
This is an example of rocks being broken down by carbonation.
This is an example of rocks being broken down by hydrolysis.