4.17.M - Quiz: Minerals, Igneous, Sedimentary & Metamorphic Rocks

Question 1

All rocks are made of ___________________.
volcanic ash
minerals
layers
soil
sand
mixtures

Answer 1

minerals

Question 2

All of the following are characteristics of minerals except:
definite composition
crystalline
specific physical properties
random arrangement of atoms
inorganic
solid

Answer 2

random arrangement of atoms

Question 3

What happens when magma cools slowly in mineral formation?
Microscopic crystals will form.
Large crystal grains will form.
Crystals will form a smooth texture.
Crystals will break apart.

Answer 3

Large crystal grains will form.

Question 4

Color is not the best way to identify a mineral, why?
Impurities can change the colors of minerals.
All of the choices are correct.
Color is determined by the elements.
Some minerals have several different colors.
There are too many different gradations of color to use accurately.

Answer 4

All of the choices are correct.

Question 5

Which test is not a test used for identifying minerals?
Streak
Weight
Specific gravity
Color
Hardness
Luster

Answer 5

Weight

Question 6

The hardness scale was developed by ______________________________.
Eric Moons
Freidrich Mohs
Rick Mosley
Richard Moss
Ricky Van Monte
Fredrick Van Mousse

Answer 6

Freidrich Mohs

Question 7

Which is an example of an extrusive igneous rock? (You may use your igneous rock identification chart.)
Pegmatite
Scoria
Granite
Gabbro
Diorite

Answer 7

Scoria

Question 8

Basaltic magma ____________________________. (You may use your charts.)
forms at subduction boundaries
contains high amounts of silica
is always explosive
forms in rifts or oceanic hotspots
is sometimes explosive
has the lowest temperature

Answer 8

forms in rifts or oceanic hotspots

Question 9

The silica content of igneous rock ___________________________.
decreases as it becomes an extrusive rock
increases as the sample of rock gets lighter in color
increases as it becomes an intrusive rock
increases as the sample of rock gets darker in color
decreases as the sample of rock gets lighter in color
increases as it is formed deeper in the ground

Answer 9

increases as the sample of rock gets lighter in color

Question 10

Very small crystals in an igneous rock show that it was formed __________.
in a short period of time
close to the surface of the Earth
deep in the surface of the Earth
at a very low temperature
in a long period of time
at a very high temperature

Answer 10

in a short period of time

Question 11

Pumice is an example of a(n) ______________. (You may use your charts.)
plutonic, fine-grained igneous rock
extrusive, vesicular igneous rock
phaneritic, coarse-grained igneous rock
extrusive, coarse-grained igneous rock
intrusive, coarse-grained igneous rock
porphryitic, fine-grained igneous rock

Answer 11

extrusive, vesicular igneous rock

Question 12

Mafic igneous rocks contain about _______________________. (You may use your rock identification chart.)
50% silica
80% silica
70% silica
100% silica
30% silica
60% silica

Answer 12

50% silica

Question 13

Which type of rock forms as a result of the weathering process, either by compaction and cementation of rock mineral fragments or the precipitation of dissolved minerals?
Sedimentary rock
Igneous rock
Metamorphic rock

Answer 13

Sedimentary rock

Question 14

Sedimentary rocks are changed into sediment by____________.
compaction
cementation
melting
weathering

Answer 14

weathering

Question 15

When rocks are affected by weathering and erosion, they are broken down to ______.

Answer 15

sedimentary rocks

Question 16

What are the three basic types of rock groups?

Answer 16

The three basic types of rock groups are sedimentary, metamorphic, and igneous rocks.

Question 17

Erosion is the process of ____________________.
carrying away rock particles
depositing rock particles
burying rock particles
cementing rock particles
lithifying rock particles
compacting rock particles

Answer 17

carrying away rock particles

Question 18

If the rock particles are eroded and deposited, they may mix with dead organic matter to form _____________.
chemical sedimentary rock
sandstone
organic sedimentary rock
shale
conglomerate

Answer 18

organic sedimentary rock

Question 19

Rock structure is a weakened by _____________________.
chemical weathering
physical weathering
erosion
lithification
deposition
compaction

Answer 19

chemical weathering

Question 20

Which rocks are porous depending on the degree of cementation?
Breccia
Coquina
Halite
Shale
Dolomite
Conglomerate

Answer 20

Halite

Question 21

Which rock is very porous and water can sometimes go right through?
Breccia
Shale
Granite
Sandstone
Dolomite
Conglomerate

Answer 21

Sandstone

Question 22

How can sedimentary rocks be used commercially?
Sedimentary rocks can be used for building dams.
Gold may be found there.
Sedimentary rocks can be used for stepping stones.
Diamonds may be found there.
Oil deposits may be found there.
Sedimentary rocks can be used for tombstones.

Answer 22

Oil deposits may be found there.

Question 23

Metamorphic rocks occur mostly along ________________.
divergent plate boundaries
subduction zones
hot spots
convergent plate boundaries

Answer 23

convergent plate boundaries

Question 24

Metamorphic rocks are formed by __________.
weathering and erosion
melting and cooling
heat and pressure
erosion and deposition
partial melting and deposition
cementation and compaction

Answer 24

heat and pressure

Question 25

Banding shows a type of foliation called _______________.
schistose foliation
slaty foliation
non-foliation
phylitic foliation
banding foliation
gneissic foliation

Answer 25

gneissic foliation