NSSS5.3

toc =5.3 Sedimentary Rocks=

Vocabulary

 * Sediment**: Small pieces of solid material which originate from rocks or living things
 * Erosion**: anything which loosen fragments of rock or soil
 * Deposition**: The process of which material carried by wind or water settles down
 * Compaction**: The process which compresses sediment together
 * Cementation**: The process when minerals which have dissolved crystalize and glue sediment together
 * Clastic Rock**: It is a sedimentary rock that forms when the fragments in it are squeezed together
 * Organic Rock**: A rock that forms where the remains of plants and animals are deposited in very thick layers.

Introduction

 * If you have been to Arches National Park in Utah, you might have seen the strangest scenery in the world
 * The park contains dozens of natural anticlines as well as some synclines which are sculpted naturally from erosion
 * They have layers of various colors such as red, orange, pink, and tan
 * All of the anticlines and synclines in the park are made of sandstone.
 * One of the famous arch in Arches National the Landscape Arch
 * It is almost 90 meters wide and 30 meters tall

From Sediment to Rock

 * Sedimentary rocks are formed from particles deposited by water and wind
 * The deposited sediment is the thing which forms the sedimentary rock
 * Sediment are small pieces of solid material which originate from rocks or living things
 * Water, wind, and ice can deposit layers of sediment in an area
 * **Erosion**