The events describe the formation of an underwater sedimentary rock. place the events in chronological order - after many years, the deposits turn into a hard, solid rock. the new rock is an aggregate of several kinds of inorganic and organic materials.

- a glueing substance, such as calcite or clay, carried in by flowing water begins binding the deposited material together. the deposits begin to harden.

- weathering breaks existing rocks into sediments.

- sediments and skeletal remains of marine animals begin depositing in a basin.