A type of rock formed when material is deposited
on a surface and pressed together. Sediment is deposited by wind, water,
or ice, or is precipitated when solids leave a solution in rivers or oceans,
or is formed from deposits of dead or living organisms.
Source:
FIPR
Rock formed when sediment is pressed and cemented
together naturally, over millions of years.
Source:
2002. Sciencesaurus: A Student Handbook. Wilmington , MA : Houghton Mifflin
Company