Sedimentary Rocks

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Sally.GIF (11615 bytes) Hi!  I am one of the Sedi cousins.   We are the sedimentary rocks. The name sedimentary comes from the word sediment which means to settle down into a coffee grounds in the bottom of a coffee cup, chocolate in the bottom of your milk glass or rocks beneath a glacier.

Sedimentary rocks may contain particles of mud, sand or pebbles which are usually deposited on what was once the ocean floor. They may also contain the remains of living things such as plants and animals. Over many, many years these sediments accumulate layer by layer, forming thick bands. The weight of the overlying sediments will pack down the layers below.  Over time, the compacted sediments become sedimentary rocks.


Come and meet some of us!


The Cemented one
Limestone Puzzle-pieces rock
Shale Old Mud-Face

rwbball_thm.gif (6793 bytes)Student Task !

main menu rock cycle
igneous sedimentary metamorphic
world outside teacher resources test yourself