Classifying Rocks Question Preview (ID: 36946)


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Rocks that have large grains you can easily see are described as ____ grained.
a) fine
b) banded
c) coarse
d) rounded

A rock's ____ give the rock its texture.
a) grains
b) color
c) taste
d) density

The way in which each of the three major broups of rocks forms is ____.
a) the same
b) different
c) unknown
d) not studied

To study a rock sample, geologists observe the rock's mineral composition, color, and ______.
a) temperature
b) color
c) origin
d) texture

________ alone does not provide enough information to identify a rock.
a) streak
b) luster
c) color
d) texture

Which term describes how a rock's surface looks and feels?
a) texture
b) density
c) streak
d) fracture

Which is a kind of rock that forms when heat or pressure change a sedimentary rock?
a) igneous
b) metamorphic
c) inorganic
d) organic

How many rock-forming minerals make up rocks?
a) 2
b) 2,000
c) 20
d) 200

Light-colored rock with high silica content describes
a) quartzite
b) quartz
c) breccia
d) granite

Rocks that are ______ have grains that lie in a pattern of flat layers or form swirls.
a) nonbanded
b) fine
c) coarse
d) banded

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