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| Of all the rock on earth, what percent is sedimentary rock? | 75% |
| Why can you find so many sedimentary rocks on the surface of the earth? | Sedimentary rock forms from materials at earths surface |
| The process of breaking rock into smaller pieces is called ? | Weathering |
| What natural forces cause weathering | Flowing water or moving ice and freezing and thawing , which causes contaction and expansion |
| What is a sedimentary rock formed from pebbles and sand that are cemented together | Conglomerate |
| What is one process that makes a conglomerate rock | Cementation begins when particles of sediment deposited in layers |
| what is one process that makes a conglomerate rock | Water with minerals in it flow through the spaces between the particles |
| What is one process that makes a conglomerate rock | Cementation in completed when minerals in the water are deposited in the spaces between the particles. first, the minerals line the spaces and cement the particles together. after some time the minerals can seal all the open spaces. |
| What is one process that makes a sedimentarty rock | The cpmpaction of sediment beings when a layer of sediment is deposeted, the particles do not fit together tighly and water fills the spaces |
| What is one process that makes a sedimentarty rock | More layers of sediment are deposited. The weight of the new laters press down layers underneath. the water is squeezed out, the spaces get smaller and the particles are forced together. |
| What is one process that makes a sedimentarty rock | Eventually the layers are compacted into solid rock |
| The movement of sediment to new locations is called? | Erosion |
| The dropping of sediment from wind or water that slows down is? | Deposition |
| Discribe a place where water slows down and drops layer upon layer of sediment | Ariver will slow as it empties into a lager body of water, such as a lake or and ocean. |
| Layer of sediment build up over many years in a process called? | Sedimentation |
| What glues the compacted particles together in the formation of a sedimentary rock | Cementation |
| Sedimentary rocks are divided into two main groupls________ rocks are made of sediments that were weathered, transported, and deposited into layers. _________ rocks are formed from minerals that were dissolved in water and then deposited | Clastic / Chemical |
| What forms from layers of compacted clay | Clay |
| Clastic rocks are classified by? | Size of the sediment particles, they can be fine medium, or course |
| What is a fine particle sedimentary rock and is the most common? | Shale |
| What is a medium sized particle sedimentary rock and has a lot of quarts in it? | Sand Stone |
| What is a sedimentary rock formed with pebble sized particles with sharp edges | Breccia |
| What is a sedimentary rock formed with pebble sized particles with smooth edges | Conglomerate |
| What can the shape of clastic rock particles tell you about the rock? What would smooth edges indicate? What would sharp edges indicate | the particles with rounded edges were probably moved a long distance by water.the particles with sharpe edges were not transported for a long time or as far. |
| Chemical weathering causes rocks to | Break down into chemicals that can dissolve in water |
| How do chemical rocks form? | Evaporation can leave chemical sedimentary rocks behind, from animal shells or sheletons (fossil) |
| what is teh most common chemical sedimentary rock, and how does it form? | limestone, from the shells and skeletons of invertebrates that lived in the ocean |
| Describe ONE rock that are used as building materials | Shale - used to build pottery, bricks, tiles and china |
| Describe ONE rock that are used as building materials | Mudstone - pottery bricks tiles and china |
| Describe ONE rock that are used as building materials | Sandstone - Buildings aypsum plaster |
| What energy sources are found in sedimentary rock | Petroleum and natural gas |
| How do farmers depend on sedimentary rock? | limestone is used to make agricultural lime for treating acidic solids & phospate rocks are made into fertilizer |
