1. Sedimentary Rocks Earth Systems

2. I said click the middle

3. Ok thank you. Was that so hard?

4. When do sedimentary rocks form?

5. Sedimentary rocks start to form when fragments of existing rocks get broken down into sediments.

6. Some More Stuff to Know

7. There are four major processes of forming sedimentary rocks

8. Some More Stuff to Know There are four major processes of forming sedimentary rocks Weathering, Erosion, Deposition, and Compaction/Cementation.

9. Some More Stuff to Know There are four major processes of forming sedimentary rocks Weathering, Erosion, Deposition, and Compaction/Cementation. In that order of course.

10. Weathering

11. Weathering is breaking down rock using agents of erosion.

12. Weathering Weathering is breaking down rock using agents of erosion. Water, ice, wind or gravity. These are agents of erosion.

13. Weathering Weathering is breaking down rock using agents of erosion. Water, ice, wind or gravity. These are agents of erosion. Chemical weathering is when rocks get dissolved into new substances.

14. Erosion

15. Erosion is the weathering of rock to break the rock down into sediments.

16. Deposition

17. Deposition is when sediments fall out of the agent of erosion they are currently in

18. Forms of Forming Sedimentary Rocks

19. Compaction is a process the squeezes sediments together forming rocks

20. Forms of Forming Sedimentary Rocks Compaction is a process the squeezes sediments together forming rocks Cementation is when dissolved particles in deposited in tiny spaces in sediments

21. Types of Sedimentary Rocks

22. There are two types of sedimentary rocks

23. Types of Sedimentary Rocks There are two types of sedimentary rocks Clastic and Chemical/Biochemical

24. Types of Sedimentary Rocks There are two types of sedimentary rocks Clastic and Chemical/Biochemical They are classified by what they are made of

26. Clastic Rocks

27. Clastic rocks are made of weathered bit of rock

28. Chemical/Biochemical Rocks

29. Chemical rocks are made from dissolved particles that separate from water (normally after evaporation).

30. Chemical/Biochemical Rocks Chemical rocks are made from dissolved particles that separate from water (normally after evaporation). Limestone is a very common chemical rock, and so is chalk

31. Chemical/Biochemical Rocks Chemical rocks are made from dissolved particles that separate from water (normally after evaporation). Limestone is a very common chemical rock, and so is chalk 90% of limestones from biochemical sediments

32. Why do we care?

33. No seriously, why do we care?

34. Fossils and Earth Aging

35. Shapes in the rocks show the kinds of environments these rocks formed in.

36. Fossils and Earth Aging Shapes in the rocks show the kinds of environments these rocks formed in. Fossils and the layers in these rocks help determine how old the rocks are and when they were formed.