Name: D’vetria Cunningham1. What is sediment? Be sure to describe it interms of geology. (1 point)Sediment is sand andother minerals that settle themselves at the bottom of liquids.
Sediment also is made up of tiny rocks orpebbles. Sediment settles at the bottom of liquids by natural processes such asnature. The sediments can be carried bywind, water or erosion. 2. What is chemical weathering? In your response,include the following terms: biochemical and precipitate. (1 point)Chemical weatheringhappens when wind or water or other natural processes change and shape therocks.
They change the rock by changing whatthe rock is composed of. Biochemical weathering happens when plants such asmoss and other things help the disintegration of the rocks. 3. What is mechanical weathering? In your response,include the following terms: detrital and clastic. (1 point)Mechanical weatheringhappens when the larger rocks break off into smaller rocks. As the larger rocksbreak off into smaller rocks they create smaller rocks or sometimes sand thatare perfect for detrital and clastic rocks to form.
Both of these rocks are responsible for thecomposition of many other rocks. 4. How do clastic sedimentary rocks form? In yourresponse, include the following terms: lithification, deposition, erosion, andcompaction. (1 point)Clastic sedimentaryrocks form by the putting together other rocks that have been loosened byerosion. These tiny rocks come together to form their own rock. These pieces or rocks travel into bodies ofwater like lagoons etc. Once the rocksare inside the water the sediments go through deposition. These sediments become compacted and gothrough the process of lithification.
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Lithificationis the start of the formation of sedimentary rock. 5. What are rock strata? What are some things thatmake strata unique? (1 point)Rock strata are layersof sedimentary rocks that are stacked together. They look like stacks ofdifferent colored rocks. Rock strata isunique because you can distinctly see the different layers of the sedimentaryrock. They are very visible to the human eye.
6. Name fourgrain sizes. To get you started, the largest grain size has been provided onthe list. (2 points)0) Boulder1) Gravel2) Sand3) Silt 4) Clay 7. Name four sedimentary structures that could haveformed during deposition.
(2 point)1) Stratification2) Graded Bedding3) Ripple Marks4) Cross- Bedding 8.No author. (No Date)Retrieved from http://www.
dictionary.com/browse/sedimentNo author. (No Date) Retrieved fromhttps://geomaps.wr.usgs.
gov/parks/rxmin/rock2.html 8. Aclastic sedimentary rock consistingprimarily of fine gravel (2points) 9. Asedimentary structure (see Question7) that could be created by the wind (2points)
