Question 1

Why is one way to distinguish metamorphic rocks from igneous rocks mineralogy?

Accepted Answer

A)   The composition of each rock results in different texture.
B)   The composition of each rock results in different colors.
C)   Igneous rocks, since formed underground, are made up of the same elements as metamorphic rocks.
D)   Metamorphic rocks are primarily made up of silicates, which igneous rocks don't primarily contain when cooled from magma.E) A) and C)
F) A) and B)

Question 2

Discuss the relationship between Igneous and Metamorphic rocks. (3.4)

Accepted Answer

A metamorphic rock could melt into magma...

Question 3

The genetic classification of rock requires making ________ regarding their origins.

Accepted Answer

A)   hypotheses
B)   observations
C)   inferences
D)   experimentsE) A) and B)
F) A) and C)

Question 4

How did a coarse-grained inclusion that erupted from a volcano form by internal processes?

Accepted Answer

A)   The material was precipitated from groundwater.
B)   Intense heat and pressure formed the metamorphic rock in the inclusion.
C)   Cooling lava erupted from a volcano.
D)   Coarser rocks form from the slow solidification of magma beneath Earth's surface.E) All of the above
F) C) and D)

Question 5

The easiest way to distinguish a sedimentary rock from other types is by its

Accepted Answer

A)   grain size.
B)   color.
C)   bedding.
D)   location.E) None of the above
F) A) and C)

Question 6

An example using a genetic classification of minerals is

Accepted Answer

A)   The Metamorphic Minerals.
B)   The Mohs Hardness Minerals.
C)   The Silicate Structures.
D)   The Rock Forming Minerals.E) None of the above
F) B) and C)

Question 7

You are given two rock samples; one is said to be a clastic sedimentary rock and the other a chemical sedimentary rock. How can you tell which is which? (3.2)

Accepted Answer

Chemical sedimentary rocks are formed wh...

Question 8

Why were the Vulcanists named so?

Accepted Answer

A)   Vulcan was the Roman god of the heavens.
B)   Vulcan was the Roman god of fire.
C)   Vulcan was the Roman god of earth.
D)   Vulcan was the Roman god of the seas.E) All of the above
F) A) and B)

Question 9

Why can igneous rocks be distinguished from chemical sedimentary rocks based on composition?

Accepted Answer

A)   The composition of each rock results in different texture.
B)   The composition of each rock results in different colors.
C)   Igneous rocks, since formed underground, are made up of the same elements as chemical sedimentary rocks.
D)   Igneous rocks are primarily made up of silicates, which chemical sedimentary rocks don't contain.E) A) and D)
F) A) and B)

Question 10

You are given a Metamorphic rock. From what previous rock type did it form?

Accepted Answer

A)   metamorphic
B)   igneous
C)   metamorphic, igneous, or sedimentary
D)   sedimentaryE) B) and C)
F) B) and D)

Question 11

What must occur for metamorphic rock to become magma?

Accepted Answer

A)   crystallization
B)   melting
C)   precipitation
D)   lithificationE) A) and B)
F) B) and C)

Question 12

What may result from metamorphism?

Accepted Answer

A)   Precipitated elements become a metamorphic rock.
B)   Magma becomes a metamorphic rock.
C)   Sedimentary rock becomes a metamorphic rock.
D)   Lava becomes a metamorphic rock.E) B) and D)
F) All of the above

Question 13

The Neptunist interpretation of rock formation held that nearly all rocks formed by

Accepted Answer

A)   the remains of plants and animals.
B)   chemical precipitation from water.
C)   cooling from molten rock.
D)   transport from Neptune.E) None of the above
F) A) and D)

Question 14

How would a chemical sedimentary rock form?

Accepted Answer

A)   from the precipitation of minerals
B)   particles of preexisting rocks liberate by physical weathering, then cement together
C)   a metamorphic rock breaks down
D)   a sedimentary rock is intensely heatedE) All of the above
F) B) and C)

Question 15

Metamorphic transformations require conditions found

Accepted Answer

A)   on Earth's surface.
B)   inside Earth.
C)   in Earth's mantle.
D)   only where magma forms.E) B) and C)
F) B) and D)

Question 16

Contrast volcanic rock and sandstone.

Accepted Answer

A)   Sandstone has crystals but volcanic rock is amorphous.
B)   Sandstone's crystal cement is made of minerals precipitated out of water, while volcanic rock's crystals formed from molten rock.
C)   Volcanic rock's crystal cement is glass-like, while sandstone's cement is opaque.
D)   Volcanic rock may be a mosaic of minerals, but sandstone usually forms from a single type of sand.E) B) and D)
F) All of the above

Question 17

Which word best describes volcanic rock?

Accepted Answer

A)   cemented
B)   transparent
C)   intergrown
D)   fragmentedE) A) and C)
F) All of the above

Question 18

Why is crystallization such an important part of the rock cycle?

Accepted Answer

A)   Melting occurs as a result of crystallization.
B)   Metamorphism occurs as a result of crystallization.
C)   Volcanoes are made because of crystallization.
D)   In order for igneous rocks to be made, crystallization must occur.E) B) and C)
F) None of the above

Question 19

Silicates do not commonly form chemical sedimentary rock. Why?

Accepted Answer

A)   Silicates do not dissolve as easily as these other more strongly ionic compounds.
B)   Silicates are too heavy.
C)   Silicates are not abundant enough.
D)   Silicates melt too easily.E) A) and D)
F) B) and C)

Question 20

Extrusive is to volcanic as ________ is to plutonic.

Accepted Answer

A)   igneous
B)   intrusive
C)   clastic
D)   chemicalE) A) and B)
F) C) and D)

Exam 3: Rocks and Rock-Forming Processes

Contrast volcanic rock and sandstone.

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What must occur for metamorphic rock to become magma?

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The Neptunist interpretation of rock formation held that nearly all rocks formed by

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Why is crystallization such an important part of the rock cycle?

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Extrusive is to volcanic as ________ is to plutonic.

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Which word best describes volcanic rock?

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An example using a genetic classification of minerals is

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You are given two rock samples; one is said to be a clastic sedimentary rock and the other a chemical sedimentary rock. How can you tell which is which? (3.2)

Correct AnswerverifiedChemical sedimentary rocks are formed wh...View AnswerShow Answer

The genetic classification of rock requires making ________ regarding their origins.

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How would a chemical sedimentary rock form?

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Why is one way to distinguish metamorphic rocks from igneous rocks mineralogy?

Correct AnswerverifiedShow Answer

The easiest way to distinguish a sedimentary rock from other types is by its

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How did a coarse-grained inclusion that erupted from a volcano form by internal processes?

Correct AnswerverifiedShow Answer

Why can igneous rocks be distinguished from chemical sedimentary rocks based on composition?

Correct AnswerverifiedShow Answer

Why were the Vulcanists named so?

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You are given a Metamorphic rock. From what previous rock type did it form?

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Discuss the relationship between Igneous and Metamorphic rocks. (3.4)

Correct AnswerverifiedA metamorphic rock could melt into magma...View AnswerShow Answer

Silicates do not commonly form chemical sedimentary rock. Why?

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Metamorphic transformations require conditions found

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What may result from metamorphism?

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Chemical sedimentary rocks are formed wh...
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A metamorphic rock could melt into magma...
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