2. WEATHERING: - cementation and compaction of weathered material on the earth’s surface creates sedimentary rocks Weathering is the process of breaking down rocks and minerals into smaller pieces by water, wind, and ice.

4. -Sedimentary rocks are formed from broken pieces of rocks. These broken pieces of rock are called sediments. -The word "Sedimentary" comes from the root word "Sediment". - Usually formed in water - formed in layers

5. 3 GROUPS OF SEDIMENTARY ROCKS Fragmental( clastic): made up of different sized particles. EX: Clay and Sandstone Organic: Form from the accumulation of plant and/or animal remains Ex: coal and some forms of limestone

6. Chemical: deposited by settling of materials from a solution in seawater. (evaporation) -Evaporites include; rock salt and Gypsum

7. RIPPLES IN BEACH SAND---> RIPPLES THAT HAVE HARDENED INTO ROCK SEDIMENTARY ROCK FORMATION

9. LARGEST PIECES

11. SANSTONE: -GRAINY FEELING

12. SHALE -MADE OF SMALLER PIECES THAN LIMESTONE

13. SILSTONE:SMALLEST SEDIMENT PIECES

15. Organic Limestone

16. COAL: ORGANIC

18. ROCK SALT: EVAPORITE

19. Mineral crystals are made as the shallow water that has flooded the bottom of Death Valley evaporates. Courtesy of Martin Miller, University of Oregon ROCK SALT FORMATION

20. ROCK GYPSUM: PRECIPITATE

21. LIMESTONE: LAYERED -SMALLER SEDIMENTS THAN SANDSTONE

22. FOSSIL LIMESTONE

23. Ripple Marks RIPPLES IN BEACH SAND --------> RIPPLES THAT HAVE HARDENED INTO ROCK ----------->