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: [[Sedimentary]] [[rock]]s are usually [[soft]] compared to other [[rock]]s.
: They are made of rounded [[Grain (Rock)|grains]] held together by [[mineral]] salts.
===Formation of Sedimentary Rocks===
*[[Weathering]] - Rocks are broken down by the [[environment]].
*[[Erosion (Rock Cycle)|Erosion]] - Wearing away rocks into smaller pieces.
*[[Transport (Rock Cycle)|Transport]] - Small pieces of rock are moved by rivers, glaciers and the wind.
*[[Deposition (Rock Cycle)|Deposition]] - When water and the wind slow down or when glaciers melt the small pieces of rock fall to the ground.
*[[Sedimentation]] - Layers of [[sediment]] (small pieces of rock) build up on lake beds and sea beds.
*[[Compaction]] - So many layers build up that the [[pressure]] squeezes all the water out.
*[[Cementation]] - [[Mineral]] salts that were [[dissolve]]d in the [[water]] fall out of [[solution]] and bind the [[sediment]] together.
===Examples===
{| class="wikitable"|-|[[File:Mudstone.png|center|200px]]|[[File:Limestone.png|center|200px]]|[[File:Sandstone.png|center|200px]]|-| style="height:20px; width:200px; text-align:center;" |[[Mudstone]] is formed from mud.| style=Formation "height:20px; width:200px; text-align:center;" |[[Limestone]] is formed from the shells of Sedimentary Rocks==dead sea creatures.| style="height:20px; width:200px; text-align:center;" |[[Sandstone]] is formed from rounded [[Grain (Rock)|grains]] of sand.|}