the mechanical and chemical processes that change Earth’s surface over time and weaken the rock.

the moving of weathered material, or sediment, from one location to another.

the laying down or settling of eroded material.

the process through which sediment turns into rock.

a naturally occurring solid composed of minerals, rock fragments, and sometimes other materials such as organic matter.

the series of processes that change one type of rock into another type of rock.

The physical process of sorting by differences in density and composition.

The low density outer most layer of the Earth

The medium density middle layer of the Earth

The high density center layer of the Earth