1. How is this different from the other 2?? Ever played with sand?? Sedimentary Rock

2. Origins of Sedimentary Rock Erosion-wind, H2O, ice, sunlight, and gravity cause rocks to fragment- sediment Sediment will deposits into layers Will compact with other layers forming on top of them –like layered cake Minerals dissolve together-can form cement

3. Sedimentary rocks form near the Earth's surface or at it Doesn’t need heat and pressure to make this rock Sedimentary rock have layers = strata Can easily see when driving through certain parts of the country

4. Composition of Sedimentary Rock Clastic Rock/mineral fragments cement together Minerals-Calcite/Quartz Can be coarse, medium, fine-grained texture

5. Chemical Minerals- crystallized out of a solution-sea water As rain makes its way to the ocean/river it dissolves rock/fragments In the water the minerals can crystallize and make this rock

6. Organic Remains of once-living plants + animals Most limestone forms from fossils/remains-even coral The remains will cement together Coal-forms underground from plat material buried beneath sediment, pressure and heat will be applied over yrs. To get coal

7. Sedimentary Rock Structures Stratification Sedimentary rock is arranged in layers Each strata differ from each other in minerals, size, and color of sediment

8. Ripple marks S. rocks can record motion of wind, water- lake, oceans, river, and sand dunes Mud cracks Fine-grained sediments at the bottom of shallow body of H2O are exposed to air and dry out So can see where ancient lakes, streams, oceans where once at

9. THE END!!