Earth Science
Name_____________________________
Chapter 10
Period_____________________________
Worksheet
Date______________________________
__________________________________________________________________________________
True or False
Sedimentary Rocks
For each statement write T in the blank provided if the statement is true, write F if the statement is false. (0.25 points each)
_____ 1. Some sedimentary rocks are formed from the remains of organisms.
_____ 2. Halite is a clastic sedimentary rock.
_____ 3. Fossils are most commonly preserved in sedimentary rock.
_____ 4. Shale consists of clay-sized particles that are pressed into flat layers.
_____ 5. Stratification occurs when the same particle type is deposited over a long period of time.
Fill in the Blank
Write the correct answer to complete each sentence in the space provided to the left of each question. (0.25 points each)
_______________ 6. Sedimentary rock is formed by the processes of cementation and _____.
_______________ 7. Sedimentary rocks formed by minerals that are left behind when water evaporates are
called _____.
_______________ 8. The crystal-filled rock in the diagram is a _____.
_______________ 9. Nodules that form when minerals precipitated from solutions build around rock
particles are called _____.
_______________ 10. Limestone can form either as an organic sedimentary rock or as a ______
sedimentary rock.
Classifying Sedimentary Rocks
Refer to the chart to complete the following Data Table and answer the questions
11. Fill in the sedimentary rock types and sedimentary rocks described in the Data Table.
(0.20 points each blank)
Data Table
Description
Sedimentary
Rock Type
Rock Name
The sediment particles are formed by chemical
precipitation and are too small to see with an unaided eye.
The sediment particles are mixtures of sizes that range
between 3.0 and 20.0
The sediment particles are pieces of shells.
The sediment particles are sand-sized
The sediment particles are mostly parts of plants.
Questions (0.10 points each)
12. What sedimentary rock can be formed in two different ways?
13. Describe the two ways that the rock in question #12 can form.
13. What is the only sedimentary rock type that can be formed from things that were once alive?
14. Table salt used to season foods is made of the mineral halite. What sedimentary rock is also made of
halite?
15. Explain how gypsum was formed.