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Classifying Rocks
Test Description: Review
Instructions: Answer all questions to get your test result.
1) How many rock-forming minerals make up rocks?
A
20
B
2
C
200
D
2,000
2) Light-colored rock with high silica content describes
A
breccia
B
granite
C
quartz
D
quartzite
3) Which is a kind of rock that forms when heat or pressure change a sedimentary rock?
A
organic
B
igneous
C
metamorphic
D
inorganic
4) Which term describes how a rock's surface looks and feels?
A
streak
B
fracture
C
texture
D
density
5) ________ alone does not provide enough information to identify a rock.
A
color
B
streak
C
luster
D
texture
6) To study a rock sample, geologists observe the rock's mineral composition, color, and ______.
A
color
B
temperature
C
texture
D
origin
7) The way in which each of the three major broups of rocks forms is ____.
A
different
B
unknown
C
the same
D
not studied
8) A rock's ____ give the rock its texture.
A
taste
B
color
C
grains
D
density
9) Rocks that have large grains you can easily see are described as ____ grained.
A
fine
B
coarse
C
banded
D
rounded
10) Rocks that are ______ have grains that lie in a pattern of flat layers or form swirls.
A
coarse
B
fine
C
nonbanded
D
banded
*select an answer for all questions
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