Question 1

Rocks are ________ and thus not human-made.

Accepted Answer

A)  coherent 
B)  synthetic 
C)  rare 
D)  natural 
A)  coherent 
B)  synthetic 
C)  rare 
D)  natural D

Question 2

Which of the following would NOT be considered a rock?

Accepted Answer

A)  a natural material composed of interlocking crystals 
B)  a natural pile of unconsolidated sand 
C)  a natural material made of frothy glass 
D)  a natural material made of shells cemented together 
A)  a natural material composed of interlocking crystals 
B)  a natural pile of unconsolidated sand 
C)  a natural material made of frothy glass 
D)  a natural material made of shells cemented together B

Question 3

Which type of rock is formed by precipitation of minerals from a solution?

Accepted Answer

A)  metamorphic 
B)  glassy 
C)  sedimentary 
D)  igneous 
A)  metamorphic 
B)  glassy 
C)  sedimentary 
D)  igneous C

Question 4

What type of rock is being formed in the photo?

Accepted Answer

A)  igneous 
B)  sedimentary 
C)  metamorphic 
D)  extrusive 
A)  igneous 
B)  sedimentary 
C)  metamorphic 
D)  extrusive

Question 5

The photo shown below is a(n)________ that geologists can use to study the minerals in the rock.

Accepted Answer

A)  hand sample 
B)  thin section 
C)  outcrop 
D)  X-ray 
A)  hand sample 
B)  thin section 
C)  outcrop 
D)  X-ray

Question 6

What do geologists call the layering seen in this photo?

Accepted Answer

A)  tilted bedding 
B)  metamorphic foliation 
C)  sedimentary layers 
D)  cleavage planes 
A)  tilted bedding 
B)  metamorphic foliation 
C)  sedimentary layers 
D)  cleavage planes

Question 7

What type of rock would you most expect to find forming in a beach environment?

Accepted Answer

A)  crystalline 
B)  sedimentary 
C)  metamorphic 
D)  igneous 
A)  crystalline 
B)  sedimentary 
C)  metamorphic 
D)  igneous

Question 8

Explain why a piece of concrete is not a rock.

Accepted Answer

Although concrete is a solid a

Question 9

In which of the following settings would you be most likely to find sedimentary rocks forming?

Accepted Answer

A)  deep within a mountain range 
B)  inside a lava flow on Hawaii 
C)  at a mid-ocean ridge 
D)  at the bottom of the Mediterranean Sea 
A)  deep within a mountain range 
B)  inside a lava flow on Hawaii 
C)  at a mid-ocean ridge 
D)  at the bottom of the Mediterranean Sea

Question 10

What can geologists most easily determine by analyzing a thin section?

Accepted Answer

A)  whether or not the rock is molten 
B)  what chemical constituents make up the rock 
C)  what minerals constitute the rock and how grains connect to one another 
D)  the arrangement of atoms 
A)  whether or not the rock is molten 
B)  what chemical constituents make up the rock 
C)  what minerals constitute the rock and how grains connect to one another 
D)  the arrangement of atoms

Question 11

Composition describes the

Accepted Answer

A)  degree of compaction and cementation in a rock. 
B)  arrangement of minerals in a rock. 
C)  presence of layers in a rock. 
D)  proportion of chemicals that make up a rock. 
A)  degree of compaction and cementation in a rock. 
B)  arrangement of minerals in a rock. 
C)  presence of layers in a rock. 
D)  proportion of chemicals that make up a rock.

Question 12

What is the definition of rock "texture"?

Accepted Answer

Rock texture refers to the con

Question 13

Granite is a type of rock that forms deep underground from magma that cools very slowly.What type of rock is granite?

Accepted Answer

A)  igneous 
B)  sedimentary 
C)  metamorphic 
A)  igneous 
B)  sedimentary 
C)  metamorphic

Question 14

Abraham Werner proposed a classification scheme for rocks based on their mode of formation.What were he and his followers called? Also,briefly explain this system.

Accepted Answer

Neptunists.Werner suggested that primary

Question 15

If a rock is subjected to elevated levels of heat and pressure,a(n)________ rock will form.

Accepted Answer

A)  igneous 
B)  molten 
C)  metamorphic 
D)  sedimentary 
A)  igneous 
B)  molten 
C)  metamorphic 
D)  sedimentary

Question 16

Which of the following best explains how a metamorphic rock forms?

Accepted Answer

A)  freezing (solidification)from a molten material 
B)  recrystallization due to changes in pressure and temperature 
C)  solidification of pieces of weathered,preexisting rocks 
D)  fast (instant)cooling of a molten material 
A)  freezing (solidification)from a molten material 
B)  recrystallization due to changes in pressure and temperature 
C)  solidification of pieces of weathered,preexisting rocks 
D)  fast (instant)cooling of a molten material

Question 17

Which of the following is a reliable characteristic that can be used to classify a rock?

Accepted Answer

A)  mineral stability 
B)  texture 
C)  water content 
D)  degree of weathering 
A)  mineral stability 
B)  texture 
C)  water content 
D)  degree of weathering

Question 18

What type of rock would you expect to form from volcanic activity?

Accepted Answer

A)  sedimentary 
B)  biologic 
C)  metamorphic 
D)  igneous 
A)  sedimentary 
B)  biologic 
C)  metamorphic 
D)  igneous

Question 19

What type of rock is shown in the photo?

Accepted Answer

A)  sedimentary 
B)  igneous 
C)  metamorphic 
D)  crystalline 
A)  sedimentary 
B)  igneous 
C)  metamorphic 
D)  crystalline

Question 20

What is the difference between a rock that is cemented together and a rock that has a crystalline texture?

Accepted Answer

A)  A rock that is cemented contains rounded grains that are held together by cement,whereas a crystalline rock contains angular grains held together by cement. 
B)  Crystalline rocks contain minerals,while cemented rocks contain rock fragments; both are held together by static forces between grains. 
C)  Minerals are held together as interlocking pieces in a cemented rock,whereas grains are held together by minerals precipitated in pore spaces in a crystalline rock. 
D)  Minerals are held together as interlocking pieces in a crystalline rock,whereas in a cemented rock the grains do not fit together like puzzle pieces and instead are held together by cement. 
A)  A rock that is cemented contains rounded grains that are held together by cement,whereas a crystalline rock contains angular grains held together by cement. 
B)  Crystalline rocks contain minerals,while cemented rocks contain rock fragments; both are held together by static forces between grains. 
C)  Minerals are held together as interlocking pieces in a cemented rock,whereas grains are held together by minerals precipitated in pore spaces in a crystalline rock. 
D)  Minerals are held together as interlocking pieces in a crystalline rock,whereas in a cemented rock the grains do not fit together like puzzle pieces and instead are held together by cement.

Exam 24: Introducing Rocks

Rocks are ________ and thus not human-made.

Which of the following would NOT be considered a rock?

Which type of rock is formed by precipitation of minerals from a solution?

What type of rock is being formed in the photo?

The photo shown below is a(n)________ that geologists can use to study the minerals in the rock.

What do geologists call the layering seen in this photo?

What type of rock would you most expect to find forming in a beach environment?

Explain why a piece of concrete is not a rock.

In which of the following settings would you be most likely to find sedimentary rocks forming?

What can geologists most easily determine by analyzing a thin section?

Composition describes the

What is the definition of rock "texture"?

Granite is a type of rock that forms deep underground from magma that cools very slowly.What type of rock is granite?

Abraham Werner proposed a classification scheme for rocks based on their mode of formation.What were he and his followers called? Also,briefly explain this system.

If a rock is subjected to elevated levels of heat and pressure,a(n)________ rock will form.

Which of the following best explains how a metamorphic rock forms?

Which of the following is a reliable characteristic that can be used to classify a rock?

What type of rock would you expect to form from volcanic activity?

What type of rock is shown in the photo?

What is the difference between a rock that is cemented together and a rock that has a crystalline texture?

Cosmology and the Birth of the Earth

Journey to the Center of the Earth

Drifting Continents and Spreading Seas

The Way the Earth Works: Plate Tectonics

Patterns in Nature: Minerals

Up From the Inferno: Magma and Igneous Rocks

Pages of Earths Past: Sedimentary Rocks

Metamorphism: a Process of Change

The Wrath of Vulcan: Volcanic Eruptions

A Violent Pulse: Earthquakes

Crags,cracks,and Crumples: Crustal Deformation and Mountain Building

Deep Time: How Old Is Old

A Biography of the Earth

Squeezing Power From a Stone: Energy Resources

Riches in Rock: Mineral Resources

Unsafe Ground: Landslides and Other Mass Movements

Streams and Floods: the Geology of Running Water

Restless Realm: Oceans and Coasts

A Hidden Reserve: Groundwater

An Envelope of Gas: the Earths Atmosphere and Climate

Dry Regions: the Geology of Deserts

Amazing Ice: Glaciers and Ice Ages

Global Change in the Earth System

a Surface Veneer: Sediments and Soils

the Rock Cycle in the Earth System

the Earths Interior, Revisited: Seismic Layering, Gravity, and the Magnetic Field

Memories of Past Life: Fossils and Evolution

Ever-Changing Landscapes and the Hydrologic Cycle

Prelude: and Just What Is Geology

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