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Rock123b



Multiple Choice
Identify the choice that best completes the statement or answers the question.
 

 1. 

Igneous rocks that form ____ the surface are intrusive.
a.
above
c.
on
b.
below
d.
all of the above
 
 
nar001-1.jpg
Figure 4-1
 

 2. 

Figure 4-1 shows that the processes involved in the rock cycle include all of the following EXCEPT ____.
a.
condensation
c.
weathering
b.
erosion
d.
compaction
 

 3. 

The rock cycle shown in Figure 4-1 indicates that each type of rock can ____.
a.
provide materials to make other rocks
b.
form other rocks
c.
be changed by forces at Earth's surface
d.
all of the above
 

 4. 

The ____ in Figure 4-1 shows how one rock changes into another.
a.
rock cycle
c.
formation of crystals
b.
melting process
d.
none of the above
 

 5. 

Igneous rocks form from ____ when it cools.
a.
magma
c.
neither a nor b
b.
lava
d.
both a and b
 

 6. 

The molten material deep inside Earth from which igneous rocks form is called ____.
a.
magma
c.
neither a nor b
b.
lava
d.
both a and b
 

 7. 

Lava that cools quickly forms ____ rocks.
a.
extrusive metamorphic
c.
intrusive metamorphic
b.
extrusive igneous
d.
intrusive igneous
 

 8. 

All of the following conditions in Earth can cause metamorphic rocks to form EXCEPT ____.
a.
exposure to air
c.
heat
b.
the presence of hot, watery fluids
d.
pressure
 

 9. 

Quartz is a mineral; granite is ____.
a.
also a mineral
c.
a gem
b.
a rock
d.
an ore
 

 10. 

A classification of metamorphic rocks would include whether they are ____.
a.
chemical or organic
c.
foliated or nonfoliated
b.
intrusive or extrusive
d.
basaltic or granite
 

 11. 

The pressure and heat that produce magma are caused in part by ____.
a.
gravity
c.
radioactive elements
b.
magnetic fields
d.
lava
 

 12. 

Metamorphic rocks can undergo all of the following changes EXCEPT ____.
a.
an exchange of atoms between minerals
b.
melting
c.
the formation of new, bigger minerals
d.
the flattening of mineral grains
 

 13. 

Fine-grained, extrusive rocks include all of the following EXCEPT ____.
a.
granite
c.
basalt
b.
scoria
d.
pumice
 

 14. 

A rock is always ____.
a.
made of molten material
b.
a mixture of minerals, organic matter, volcanic glass, or other materials
c.
formed by heat and pressure
d.
either igneous or sedimentary
 

 15. 

The crystals that form in slowly cooled magma produce ____ mineral grains.
a.
tiny
c.
fine-grained
b.
invisible
d.
large
 

 16. 

Changes that take place in rocks never create or destroy ____.
a.
rocks
c.
matter
b.
crystals
d.
minerals
 

 17. 

____ would be considered a rock.
a.
Quartz
c.
Granite
b.
Mica
d.
all of the above
 

 18. 

Magma from deep inside Earth rises toward the surface because ____.
a.
it is denser than surrounding solid rock
b.
it is less dense than surrounding solid rock
c.
it has the same density as surrounding solid rock
d.
none of the above
 

 19. 

When lava cools at Earth's surface, ____ igneous rocks are formed.
a.
extrusive
c.
intrusive
b.
metamorphic
d.
coarse-grained
 

 20. 

When magma cools deep inside Earth, ____ igneous rocks are formed.
a.
extrusive
c.
detrital
b.
fine-grained
d.
intrusive
 

 21. 

Basaltic igneous rocks are ____.
a.
light-colored
c.
rich in iron and magnesium
b.
lower in density than granitic rocks
d.
both a and b
 

 22. 

Granitic igneous rocks are all of the following EXCEPT ____.
a.
light-colored
c.
high in silica content
b.
lower in density than basaltic rocks
d.
high in iron content
 

 23. 

An igneous rock can form from ____ magma.
a.
basaltic
c.
granitic
b.
andesitic
d.
all of the above
 

 24. 

Metamorphic rocks that show layers of dark minerals alternating with layers of light minerals are classified as ____.
a.
nonfoliated
c.
foliated
b.
extrusive
d.
intrusive
 

 25. 

Metamorphic rocks with a non-foliated texture show metamorphic change that involves ____.
a.
mineral grains arranging into layers
b.
growth in the size of the mineral grains
c.
mineral grains flattening under pressure
d.
mineral grain melting
 

 26. 

Magma that cools below Earth’s surface forms ____ rock.
a.
extrusive metamorphic
c.
intrusive metamorphic
b.
extrusive igneous
d.
intrusive igneous
 

 27. 

The processes involved in the rock cycle include all of the following EXCEPT ____.
a.
condensation
c.
weathering
b.
erosion
d.
compaction
 

 28. 

Foliated rocks are distinguished by ____.
a.
large pores
c.
the enlargement of mineral grains
b.
layers
d.
the shape and size of the sediments
 

 29. 

Lava that cools quickly forms ____ rocks.
a.
extrusive metamorphic
c.
intrusive metamorphic
b.
extrusive igneous
d.
intrusive igneous
 

 30. 

Metamorphic rocks can be formed from all of the following EXCEPT ____.
a.
the formation of minerals from solutions
b.
the presence of hot, watery fluids
c.
temperature
d.
pressure
 

 31. 

Quartz is a mineral; granite is ____.
a.
also a mineral
c.
glass
b.
a rock
d.
mica
 

 32. 

A classification of metamorphic rocks would include whether they are ____.
a.
chemical or organic
c.
foliated or nonfoliated
b.
intrusive or extrusive
d.
basaltic or granitic
 

 33. 

Sedimentary rocks are ____.
a.
formed below Earth’s surface as magma
b.
a type of foliated igneous rock
c.
formed by great heat
d.
formed from already existing rocks that are weathered and eroded
 

 34. 

The changes that take place in the rock cycle ____.
a.
create matter
c.
create and destroy matter
b.
destroy matter
d.
never create nor destroy matter
 

 35. 

The rock cycle indicates that each type of rock can ____.
a.
provide materials to make other rocks
c.
be changed by natural processes
b.
form other types of rocks
d.
all of the above
 

 36. 

The crystals that form in slowly cooling magma are generally ____.
a.
nonexistent
c.
tiny
b.
invisible
d.
large
 

 37. 

A mineral is inorganic, which means that it contains
a.
compounds.
b.
materials made by humans.
c.
parts of living things.
d.
no materials that were once part of living things.
 

 38. 

Although brick, steel, and glass all come from substances found in Earth’s crust, they are not classified as minerals because
a.
they are organic.
b.
they are not naturally occurring.
c.
they are too hard.
d.
they have many uses.
 

 39. 

What is the hardest known mineral?
a.
talc
b.
quartz
c.
diamond
d.
gold
 

 40. 

Most minerals do NOT split apart evenly. Instead, they have a characteristic type of
a.
cleavage.
b.
fracture.
c.
crystal.
d.
luster.
 

 41. 

The softest mineral on the Mohs hardness scale is
a.
quartz.
b.
talc.
c.
apatite.
d.
gypsum.
 

 42. 

Igneous rock that cools very quickly when it forms may have a texture that is
a.
smooth and shiny with no visible grain.
b.
multicolored and banded.
c.
coarse grained.
d.
made up of jagged grains.
 

 43. 

When all the grains in a rock are large and easy to see, the rock is described as
a.
extrusive.
b.
fine grained.
c.
coarse grained.
d.
nonbanded.
 

 44. 

Rock that forms from the cooling of magma below the surface or lava at the surface is called
a.
sedimentary rock.
b.
metamorphic rock.
c.
igneous rock.
d.
coarse-grained rock.
 

 45. 

Where does most metamorphic rock form?
a.
at the surface
b.
just below the surface
c.
in ocean waters
d.
deep underground
 

 46. 

Igneous rock that formed from lava that erupted onto Earth’s surface is called
a.
extrusive rock.
b.
intrusive rock.
c.
clastic rock.
d.
sedimentary rock.
 

 47. 

The most abundant intrusive rock in the continental crust is
a.
slate.
b.
granite.
c.
flint.
d.
quartzite.
 

 48. 

Heat and pressure deep beneath Earth’s surface can change any rock into
a.
chemical rock.
b.
gemstones.
c.
metamorphic rock.
d.
sedimentary rock.
 

 49. 

The heat that changes a rock into metamorphic rock comes from
a.
the heat of the mantle.
b.
the sun.
c.
movements in the crust.
d.
chemical rocks in the crust.
 

 50. 

Geologists classify metamorphic rock according to
a.
the exterior color of the rock.
b.
the overall shape of the rock.
c.
the arrangement of the grains that make up the rock.
d.
the degree of hardness of the rock.
 

 51. 

The texture of a metamorphic rock that has grains arranged in parallel layers is described as
a.
foliated.
b.
jagged grained.
c.
coarse grained.
d.
nonfoliated.
 

 52. 

Metamorphic rocks that are nonfoliated
a.
split into layers.
b.
do not split into layers.
c.
have mineral grains lined up in parallel layers.
d.
usually have a rougher texture.
 

 53. 

What are the two most useful metamorphic rocks?
a.
sandstone and quartzite
b.
marble and slate
c.
limestone and breccia
d.
granite and shale
 

 54. 

A series of processes on Earth’s surface and in the crust and mantle that slowly changes rocks from one kind to another is called
a.
erosion.
b.
crystallization.
c.
the rock cycle.
d.
evaporation.
 

 55. 

What step in the rock cycle would be required to change granite into sandstone?
a.
Granite particles settle on the ocean floor.
b.
Lava flows melt the granite sediment.
c.
Pieces of the granite melt when they return to the mantle by subduction.
d.
Magma hardens into granite sediment.
 

Matching
 
 
Match each statement with the correct item below.
a.
compaction
e.
weathering
b.
cementation
f.
marble
c.
limestone
g.
erosion
d.
coal
h.
slate
 

 56. 

The process in which rock is exposed to air, water, or ice and breaks into pieces.
 

 57. 

the movement of weathered material
 

 58. 

a kind of foliated metamorphic rock
 

 59. 

a kind of nonfoliated metamorphic rock
 
 
Match the terms with their descriptions below.
a.
granitic
i.
sediments
b.
metamorphic rocks
j.
igneous rocks
c.
rock cycle
k.
compaction
d.
sedimentary rocks
l.
intrusive
e.
cementation
m.
foliated
f.
basaltic
n.
lava
g.
rock
o.
nonfoliated
h.
extrusive
 

 60. 

rocks formed by changes in heat and pressure or the presence of hot, watery fluids
 

 61. 

rocks formed from molten material
 

 62. 

rocks formed from sediments
 

 63. 

igneous rocks formed on or near Earth’s surface
 

 64. 

layered metamorphic rocks
 

 65. 

process by which sediments are pressed together to form rock
 

 66. 

light-colored igneous rocks with a lower density than basaltic rocks
 

 67. 

dense, dark-colored igneous rocks
 

 68. 

metamorphic rocks that don’t have layers
 

 69. 

process by which large sediments are glued together by dissolved minerals to form rock
 

 70. 

igneous rocks formed below Earth’s surface
 

 71. 

bits of weathered rock, minerals, grains, plants, and animals that have been eroded
 

 72. 

model that illustrates the processes that create and change rocks
 

 73. 

magma that reaches Earth’s surface and flows from volcanoes
 

 74. 

a mixture of minerals, organic matter, volcanic glass, or other materials
 



 
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