Question 1

The melting point of silicate minerals is strongly dependent on the amount of silica they contain.Generally speaking,which minerals are the first to melt?

Accepted Answer

The first minerals t

Question 2

In a wet and humid climate,the mineral halite will succumb to weathering more easily than granite because

Accepted Answer

A) granite is more resistant. 
B) halite readily dissolves in water. 
C) halite is relatively soft (hardness of 2.5). 
D) all of the above. 
A) granite is more resistant. 
B) halite readily dissolves in water. 
C) halite is relatively soft (hardness of 2.5). 
D) all of the above.

Question 3

Layers of limestone in a rock outcrop often indicate that the area had at some time been

Accepted Answer

A) near the site of volcanic activity. 
B) glaciated. 
C) covered by water. 
D) a desert area. 
A) near the site of volcanic activity. 
B) glaciated. 
C) covered by water. 
D) a desert area.

Question 4

What are the rock-forming mineral groups?

Accepted Answer

Silicates,carbonates

Question 5

The most common carbonate rock is

Accepted Answer

A) dolomite. 
B) calcite. 
C) halite. 
D) limestone. 
A) dolomite. 
B) calcite. 
C) halite. 
D) limestone.

Question 6

The three most common cementing agents in a sedimentary rock are

Accepted Answer

A) silica,calcite,and hematite. 
B) calcite,silica,and iron oxide. 
C) silica,carbonate,and feldspar. 
D) silica,iron oxide,and sandstone. 
A) silica,calcite,and hematite. 
B) calcite,silica,and iron oxide. 
C) silica,carbonate,and feldspar. 
D) silica,iron oxide,and sandstone.

Question 7

Contact metamorphic rocks are typically not foliated because

Accepted Answer

A) the parent rock does not contain the correct type of minerals to produce foliation. 
B) contact metamorphism occurs from heat and not from deformation due to stress. 
C) contact metamorphism does not produce minerals,such as the micas,which are needed for foliation to occur. 
A) the parent rock does not contain the correct type of minerals to produce foliation. 
B) contact metamorphism occurs from heat and not from deformation due to stress. 
C) contact metamorphism does not produce minerals,such as the micas,which are needed for foliation to occur.

Question 8

What is the major rock-forming mineral group? Give examples of minerals in this group.

Accepted Answer

Silicates are the most abundan

Question 9

The first minerals to crystallize from a cooling magma have a

Accepted Answer

A) high melting point and a low silica content. 
B) low melting point and a high silica content. 
C) high melting point and a high silica content. 
D) low melting point and a low silica content. 
A) high melting point and a low silica content. 
B) low melting point and a high silica content. 
C) high melting point and a high silica content. 
D) low melting point and a low silica content.

Question 10

Lava can be

Accepted Answer

A) extruded from a volcano. 
B) a cooled,solid rock. 
C) intruded as a dike. 
D) both A and B. 
A) extruded from a volcano. 
B) a cooled,solid rock. 
C) intruded as a dike. 
D) both A and B.

Question 11

A nonfoliated metamorphic rock composed of carbonate minerals is

Accepted Answer

A) gneiss. 
B) quartzite. 
C) slate. 
D) marble. 
A) gneiss. 
B) quartzite. 
C) slate. 
D) marble.

Question 12

A mineral's hardness is dependent on the

Accepted Answer

A) strength of its chemical bonds. 
B) mineral ionization. 
C) size of its atoms,large atoms are harder than small atoms. 
D) geometric arrangement of atoms. 
A) strength of its chemical bonds. 
B) mineral ionization. 
C) size of its atoms,large atoms are harder than small atoms. 
D) geometric arrangement of atoms.

Question 13

As the process of crystallization continues (from molten liquid to solid crystal),how does the composition of the molten liquid change?

Accepted Answer

The molten liquid becomes enri

Question 14

The metamorphic equivalent of limestone is

Accepted Answer

A) gneiss. 
B) marble. 
C) quartzite. 
D) schist. 
A) gneiss. 
B) marble. 
C) quartzite. 
D) schist.

Question 15

A non-foliated metamorphic rock is

Accepted Answer

A) slate. 
B) schist. 
C) gneiss. 
D) quartzite. 
A) slate. 
B) schist. 
C) gneiss. 
D) quartzite.

Question 16

Layered sedimentary rocks and foliated metamorphic rocks share similarities because

Accepted Answer

A) most foliated metamorphic rocks are derived from layered sedimentary rocks. 
B) they both are formed layer upon layer. 
C) the minerals in these two types of rocks form in parallel planes. 
D) both rock types are subjected to compressive forces. 
A) most foliated metamorphic rocks are derived from layered sedimentary rocks. 
B) they both are formed layer upon layer. 
C) the minerals in these two types of rocks form in parallel planes. 
D) both rock types are subjected to compressive forces.

Question 17

Pebbles of granite are very common in a conglomerate,whereas pebbles of marble are relatively uncommon.Why is this? What are the properties of the different minerals in these rocks?

Accepted Answer

Granite is predominantly composed of qua

Question 18

What is the difference between a mineral and an element?

Accepted Answer

An element is a material consisting of o

Question 19

Coal is considered to be a

Accepted Answer

A) biochemical sedimentary rock. 
B) clastic sedimentary rock. 
C) fossiliferous sedimentary rock. 
D) chemical sedimentary rock. 
A) biochemical sedimentary rock. 
B) clastic sedimentary rock. 
C) fossiliferous sedimentary rock. 
D) chemical sedimentary rock.

Question 20

What is the difference between intrusive and extrusive igneous rocks?

Accepted Answer

Intrusive igneous rocks form below Earth

Exam 20: Rocks and Minerals

The melting point of silicate minerals is strongly dependent on the amount of silica they contain.Generally speaking,which minerals are the first to melt?

In a wet and humid climate,the mineral halite will succumb to weathering more easily than granite because

Layers of limestone in a rock outcrop often indicate that the area had at some time been

What are the rock-forming mineral groups?

The most common carbonate rock is

The three most common cementing agents in a sedimentary rock are

Contact metamorphic rocks are typically not foliated because

What is the major rock-forming mineral group? Give examples of minerals in this group.

The first minerals to crystallize from a cooling magma have a

Lava can be

A nonfoliated metamorphic rock composed of carbonate minerals is

A mineral's hardness is dependent on the

As the process of crystallization continues (from molten liquid to solid crystal),how does the composition of the molten liquid change?

The metamorphic equivalent of limestone is

A non-foliated metamorphic rock is

Layered sedimentary rocks and foliated metamorphic rocks share similarities because

Pebbles of granite are very common in a conglomerate,whereas pebbles of marble are relatively uncommon.Why is this? What are the properties of the different minerals in these rocks?

What is the difference between a mineral and an element?

Coal is considered to be a

What is the difference between intrusive and extrusive igneous rocks?

Patterns of Motion and Equilibrium

Newtons Laws of Motion

Momentum and Energy

Gravity, Projectiles, and Satellites

Fluid Mechanics

Thermal Energy and Thermodynamics

Heat Transfer and Change of Phase

Static and Current Electricity

Magnetism and Electromagnetic Induction

Waves and Sound

Light

Atoms and the Periodic Table

The Atomic Nucleus and Radioactivity

Elements of Chemistry

How Atoms Bond and Molecules Attract

Mixtures

How Chemicals React

Two Classes of Chemical Reactions

Organic Compounds

Plate Tectonics and Earths Interior

Shaping Earths Surface

Geologic Time - Reading the Rock Record

The Oceans, Atmosphere, and Climatic Effects

Driving Forces of Weather

The Solar System

Stars and Galaxies

The Structure of Space and Time

Prologue: The Nature of Science

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