Question 1

Where would you expect to find metamorphic rocks forming?

Accepted Answer

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

Question 2

What type of rock is shown in the picture?

Accepted Answer

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

Question 3

Geologists sometimes use analytical equipment to help identify rocks.One commonly used machine is the electron microprobe which focuses a beam of electrons on a sample to determine _______________.

Accepted Answer

A)  the amount of radioactive minerals 
B)  how atoms are arranged 
C)  the atomic weight 
D)  the chemical composition 
A)  the amount of radioactive minerals 
B)  how atoms are arranged 
C)  the atomic weight 
D)  the chemical composition D

Question 4

Imagine you are holding a rock composed of small sand grains cemented together.What type of rock is this?

Accepted Answer

A)  clastic 
B)  chemical 
C)  igneous 
D)  crystalline 
A)  clastic 
B)  chemical 
C)  igneous 
D)  crystalline

Question 5

Why do geologists classify rocks?

Accepted Answer

A)  to determine the chemical makeup of the Earth 
B)  because rocks are the key to determining geologic history 
C)  because it makes it easier to tell them apart 
D)  so that they can tell how old the rock is 
A)  to determine the chemical makeup of the Earth 
B)  because rocks are the key to determining geologic history 
C)  because it makes it easier to tell them apart 
D)  so that they can tell how old the rock is

Question 6

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

Question 7

The picture below shows a(n)______________ of rock which geologists use to determine 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 8

Composition describes the _______________.

Accepted Answer

A)  degree of compaction and cementation 
B)  arrangement of minerals in a rock 
C)  presence of layers of minerals 
D)  chemical makeup of the rock 
A)  degree of compaction and cementation 
B)  arrangement of minerals in a rock 
C)  presence of layers of minerals 
D)  chemical makeup of the rock

Question 9

What type of rock is being formed in the picture?

Accepted Answer

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

Question 10

What type of rock is formed during a volcanic eruption?

Accepted Answer

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

Question 11

What type of rock is shown in the photomicrograph?

Accepted Answer

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

Question 12

Igneous rocks form from _______________.

Accepted Answer

A)  heat and pressure applied to a rock 
B)  precipitation of minerals out of a solution 
C)  sediments cemented together 
D)  molten rock cooling and forming crystals 
A)  heat and pressure applied to a rock 
B)  precipitation of minerals out of a solution 
C)  sediments cemented together 
D)  molten rock cooling and forming crystals

Question 13

Which one of the pictures does NOT show (a)rock(s)?

Accepted Answer

A)  Figure A 
B)  Figure B 
C)  Figure C 
D)  Figure D 
A)  Figure A 
B)  Figure B 
C)  Figure C 
D)  Figure D

Question 14

Which of the following would NOT be considered a rock?

Accepted Answer

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

Question 15

Which is a physical characteristic used to classify a rock?

Accepted Answer

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

Question 16

What is the term used for the arrangement of the minerals in the picture?

Accepted Answer

A)  equant 
B)  porous 
C)  crystalline 
D)  cemented 
A)  equant 
B)  porous 
C)  crystalline 
D)  cemented

Question 17

What type of rock would you expect to form from the material found along a beach?

Accepted Answer

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

Question 18

How would you tell if a rock is crystalline?

Accepted Answer

A)  It contains crystals that have been cemented together. 
B)  It does not contain crystals at all. 
C)  It contains interlocking crystals. 
D)  It contains all one type of crystal. 
A)  It contains crystals that have been cemented together. 
B)  It does not contain crystals at all. 
C)  It contains interlocking crystals. 
D)  It contains all one type of crystal.

Question 19

If a rock is subjected to high 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 20

What type of rock is shown in the picture?

Accepted Answer

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

Exam 20: Rock Groups

Where would you expect to find metamorphic rocks forming?

What type of rock is shown in the picture?

Geologists sometimes use analytical equipment to help identify rocks.One commonly used machine is the electron microprobe which focuses a beam of electrons on a sample to determine _______________.

Imagine you are holding a rock composed of small sand grains cemented together.What type of rock is this?

Why do geologists classify rocks?

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

The picture below shows a(n)______________ of rock which geologists use to determine the minerals in the rock.

Composition describes the _______________.

What type of rock is being formed in the picture?

What type of rock is formed during a volcanic eruption?

What type of rock is shown in the photomicrograph?

Igneous rocks form from _______________.

Which one of the pictures does NOT show (a)rock(s)?

Which of the following would NOT be considered a rock?

Which is a physical characteristic used to classify a rock?

What is the term used for the arrangement of the minerals in the picture?

What type of rock would you expect to form from the material found along a beach?

How would you tell if a rock is crystalline?

If a rock is subjected to high heat and pressure,a(n)_______________ rock will form.

What type of rock is shown in the picture?

The Earth in Context

The Way the Earth Works: Plate Tectonics

Patterns in Nature: Minerals

Up From the Inferno: Magma and Igneous Rocks

The Wrath of Vulcan: Volcanic Eruptions

Pages of Earths Past: Sedimentary Rocks

Metamorphism: a Process of Change

A Violent Pulse: Earthquakes

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

Deep Time: How Old Is Old

A Biography of Earth

Riches in Rock: Energy and 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

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

The Earths Interior Revisited: Insights From Geophysics

Memories of Past Life: Fossils and Evolution

An Introduction to Landscapes and the Hydrologic Cycle

Filters