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