Sedimentary Rock is formed by erosion.  Wind, rain, sun and frost wear away the hardest rock you can think of to tiny pebbles.  As these small particles of rock are forced together into layers of earth, and other stones are piled on top, the layers harden and turn to sedimentary rock.

Some sedimentary rock is formed by chemical breakdown.  Chemicals wash away from some rocks joining with other chemicals to form new crystals.  Turquoise is formed in this manner.  Other examples of sedimentary rock are sandstone and shale.

Some sites we found informative:

About Sedimentary Rock Layers

The Rock Cycle - Sedimentary Rock

Rock Types

Sedimentary Rock

Sedimentary Rocks

Where to Dig/ Sedimentary Rock

Sedimentary Rock

Sedimentary Rocks and Processes

The Rock Cycle

Geology

Ask-An-Earth-Scientist © : Sediments and Sedimentary Rock

If you know of any sites that might be useful to students studying Rocks and Minerals please e-mail us at sjis@awsb.k12.nf.ca

Check out our pages on specific Rocks and Minerals, not necessarily Sedimentary Rocks.

Galenaby Joey
Sphaleriteby Ruthann
Pentlanditeby Devon
Skutteruditeby Adam
Apatiteby Brandon
Flouriteby Brenda
Graphiteby Andrea
Kyanite by Colin
Basaltby Shanna
Anthracite by Daniel
Topazby Holly
Dioriteby Tiffany
Gabbroby Andrew
Pumiceby Kayla
Silverby Paula
Greywackeby Jennifer
Anthraciteby Ashley
Sandstoneby Matthew
Shaleby Lou-Ann
Limestoneby Norman
   
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Completed by Mr. Butt's Grade Six Science Class (2000)
St. Joseph's Intermediate School
Carbonear, Newfoundland, Canada