AnswersSkelton - GSN - Earth Science - SC3207 ICUnit Test

Unit Test — Unit test Answers

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Which rock is an example of a chemical sedimentary rock?

A
coal
B
iron ore
C
shale
D
sandstone
22
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These minerals were formed through crystallization of molten materials.

Question illustration
A
The mineral on the left formed from lava.
B
The mineral on the right formed from magma.
C
The mineral on the left has smaller crystals than the mineral on the right.
D
The mineral on the left cooled more slowly than the mineral on the right.
23

Which describes gneiss?

A
igneous
B
formed from shells
C
tends to split along bands
D
grains randomly arranged
24

How is a mineral of volcanic origin with large crystals most likely formed?

A
crystallization through evaporation of water
B
crystallization of molten material inside Earth
C
crystallization of molten material at Earth’s surface
D
crystallization through cooling of a hot water solution
25

Study the image.

Question illustration
A
The rock has fine grains.
B
The grains of the rock are sharp or jagged.
C
The rock is banded.
D
The bands of the rock run from the top to the bottom.
26

Florian discovers a rock that is broken into pieces. Each piece has several bands.Which type of rock does Florian predict these pieces will change into when subjected to heat and pressure?

A
igneous
B
magma
C
metamorphic
D
sedimentary
27

Which type of rock is non-foliated metamorphic rock?

A
gneiss
B
limestone
C
marble
D
slate
28

As streams flow through Stone Mountain, layers of sand build up. Over time, the sand particles form a sedimentary rock called sandstone.What causes sandstone to change into metamorphic rock at Stone Mountain?

A
Sandstone is reshaped by erosion from a stream.
B
Sandstone builds up layers of sand at the mountain.
C
Sandstone experiences intense heat and pressure.
D
Sandstone has more sand particles compacted on top of it.
29

Which trait is common to rocks formed from magma trapped inside a volcano?

A
less dense
B
fine crystals
C
coarse texture
D
quickly cooled

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