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Earth Science
Chapter 6
Worksheet 1
Name ____________________________
Block ____________________________
Match the definitions to the correct word or term
____
1. deposition
____
2. evaporites
____
3. clastic sedimentary rocks
____
4. foliated
____
5. lithification
____
6. porphyroblasts
____
7. bedding
____
8. contact metamorphism
____
9. sediments
____
10. rock cycle
____
11. regional metamorphism
____
12. gradient bedding
____
13. nonfoliated
____
14. cementation
____
15. hydrothermal metamorphism
____
16. cross-bedding
____
17. porosity
____
18. clastic
A. rocks formed from the abundant deposits of loose
sediments found on Earth’s surface
B. pieces of solid material that have been deposited
on Earth’s surface by wind, water, ice, gravity, or
chemical precipitation
C. large crystals that form in solid rock by the
reorganization of atoms during metamorphism
D. when high temperature and pressure affect large
regions of Earth’s crust
E. mineral growth that cements sediment grains
together into solid rock
F. bedding in which the particle sizes become
progressively heavier and coarser towards the
bottom layers
G. depositional feature that is formed as inclined
layers of sediment move forward across a
horizontal surface
H. when sediments are laid down on the ground or
sink to the bottoms of bodies of water
I. metamorphic rocks that lack mineral grains with
long axes in one direction
J. sediments produced by the weathering of rock and
mineral fragments
K. the physical and chemical processes that transform
sediments into sedimentary rocks
L. the percentage of open spaces between grains in a
rock
M. when very hot water reacts with rock and alters its
chemistry and mineralogy
N. chemical sedimentary rock that forms mainly in
restricted ocean basins in areas with high
evaporation rates
O. a local metamorphism caused when molten rocks
come in contact with solid rock
P. the continuous changing and remaking of rocks, by
natural processes, into any other rock type
Q. metamorphic rocks arranged in wavy layers and
bands of minerals
R. horizontal layering of sedimentary rocks
Circle the letter that corresponds to the correct answer
19. What are solid particles that have been deposited on Earth’s surface called?
a. Porphyroblasts
b. Sediments
c. Schists
d. Quartizites
20. What process breaks solid rock into smaller pieces?
a. Deposition
b. Cementation
c. Weathering
d. Metamorphism
21. What agent of erosion can usually move only sand-sized or smaller particles?
a. Landslides
b. Glaciers
c. Water
d. Wind
22. Which of the following are formed by the chemical precipitation of minerals from water?
a. Sandstones
b. Coal beds
c. Salt beds
d. Shale
23. By what process are surface materials removed and transported from one location to another?
a. Weathering
b. Erosion
c. Deposition
d. Cementation
Fill in the blanks using the words from the table
Bedding
Porosity
Clastic
Sediments
Erosion
Sorted deposits
Limestone
24. Much of Earth’s surface is covered not by solid rock, but by __________________________
25. Weathering of rock produces worn surfaces and rounded corners that are characteristic of some
_________________________ sediment particles
26. Landslides, moving water, wind, and glaciers cause _______________________ of surface
materials
27. ________________________are characteristic of sediments transported by water and wind
28. The primary feature of sedimentary rocks is horizontal layering called _________________
29. The percentage of open spaces between mineral grains in clastic rocks is its ________________
30. The most abundant organic sedimentary rock is calcite-rich _____________________________
Circle T if the statement is true or F if the statement is false
T
F
31. The porosity of sandstone allows it to hold oil, gas, and water
T
F
32. Eroded materials are almost always carried uphill
T
F
33. Landslides create sorted deposits when sediment moves downhill in a jumbled mass
T
F
T
F
34. When the concentration of minerals dissolved in water reaches saturation, crystals
precipitate out of solution
35. Sedimentary rocks form from rock and mineral fragments, and metamorphic rocks form
from existing rock
Answer the following questions
36. What is the sequence of events that form clastic sedimentary rocks from solid rocks?
37. Why might sandstone act as a reservoir for groundwater or oil, while shale would not?
38. How can the chemical composition of a rock be changed during metamorphism?