Earth Science Topic #11 Review Game
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Most rock gypsum is formed by the
a. heating of previously existing foliated bedrock
b. cooling and solidification of lava
c. compaction and cementation of shells and
skeletal remains
d. chemical precipitation of minerals from
seawater
Different arrangements of tetrahedra in the silicate group of
minerals result in differences in the minerals’
a. age, density, and smoothness
b. cleavage, color, and abundance
c. hardness, cleavage, and crystal shape
d. chemical composition, size, and origin
Which statement about the formation of a rock is best supported by the
rock cycle?
a. Magma must be weathered before it can change to metamorphic
rock.
b. Sediment must be compacted and cemented before it can change to
sedimentary rock.
c. Sedimentary rock must melt before it can change to metamorphic
rock.
d. Metamorphic rock must melt before it can change to sedimentary
rock.
Base your answer on The diagram below shows the index minerals of Mohs
hardness scale compared with the hardness of some common objects.
Which statement is best supported by
the diagram?
a. A fingernail will scratch calcite but not
gypsum.
b. Calcite will be scratched by a copper
penny.
c. The mineral apatite will scratch topaz.
d. A steel file has a hardness of about
7.5.
In which group do the rocks usually have the mineral
quartz as part of their composition?
a. granite, rhyolite, sandstone, hornfels
b. shale, scoria, gneiss, metaconglomerate
c. conglomerate, gabbro, rock salt, schist
d. breccia, fossil limestone, bituminous coal, siltstone
Base your answer on The
diagram below represents a
rock consisting of granite
pebbles and sand grains
cemented together.
How does the age of the granite pebbles
compare to the age of the rock itself?
a. The pebbles are younger than the
rock.
b. The pebbles are older than the rock.
c. The pebbles are the same age as the
rock.
d. The relative age of the pebbles cannot
be determined.
Which rock is sedimentary in origin and formed as a result of
chemical processes?
a. granite
b. shale
c. breccia
d. dolostone
Which characteristic of an igneous rock
would provide the most information
about the environment in which the
rock solidified?
a. color
b. texture
c. hardness
d. streak
Which condition makes surface runoff of rainfall most likely?
a. The gradient of the surface is low.
b. Permeability rate exceeds the rate of rainfall.
c. Surface soil pore spaces are filled.
d. The porosity of the surface soil is high.
Base your answer on The diagram below
represents geological processes that act
continuously on Earth to form different rock
types.
Which table correctly classifies each rock type?
A
B
C
D
Which mineral is composed of Calcium
and Flourine?
a. Amphiboles
b. Calcite
c. Hematite
d. Fluorite
Base your answer on The cartoon below presents a humorous
look at history.
What kind of rocks does the
complaining rock collector want?
a. felsic volcanic rocks
b. clastic sedimentary rocks
c. inorganic sedimentary rocks
d. regionally metamorphosed rocks
Base your answer
on The fossil below
was found in surface
bedrock in the
eastern United
States.
Which statement best describes the formation of the rock containing this
fossil?
a. The rock was formed by the metamorphism of sedimentary rock
deposited in a terrestrial environment during the Cretaceous Period.
b. The rock was formed by the compaction and cementation of
sediments deposited in a terrestrial environment during the Triassic
Period.
c. The rock was formed by the compaction and cementation of
sediments deposited in a marine environment during the Cambrian
Period.
d. The rock was formed from the solidification of magma in a marine
environment during the Triassic Period.
A coarse-grained rock contains 50% plagioclase,
45% pyroxene, and 5% hornblende. This rock
should be identified as
a. basalt
b. granite
c. rhyolite
d. gabbro
Which of the following elements is not found in Plagioclase
Feldspar?
a. Na
b. Al
c. Si
d. Pb
Which igneous rock has a
vesicular texture and a felsic
composition?
a. pumice
b. basalt
c. granite
d. scoria
Base your answer on A student classified the rock below as
sedimentary.
Which observation about the rock best supports this classification?
a. The rock is composed of several minerals.
b. The rock has a vesicular texture.
c. The rock contains fragments of other rocks.
d. The rock shows distorted and stretched pebbles.
Sedimentary rocks of organic origin
would most likely be formed from
a. sediments eroded by running water
b. materials deposited by glaciers
c. shells of marine animals
d. particles removed from the
atmosphere by precipitation
Base your answer
on on the data table
below, which shows
information about
the four largest
asteroids found in
our solar system.
The surface rocks of Vesta contain significant
amounts of the mineral pyroxene. If rocks on Vesta
are similar to rocks on Earth, which two igneous
rocks would most likely be found on the surface of
Vesta?
a. basalt and scoria
b. dunite and granite
c. peridotite and pumice
d. rhyolite and pegmatite
Base your answer on The diagrams below show the crystal
shapes of two minerals.
Quartz and halite have different crystal shapes primarily because
a. light reflects from crystal surfaces
b. energy is released during crystallization
c. of impurities that produce surface variations
d. of the internal arrangement of the atoms
Base your answer on The diagrams below illustrate a specific
property of certain minerals.
This property is most closely related
to the
a. arrangement of atoms in the
mineral
b. impurities found in the mineral
c. softness of the mineral
d. density of the mineral
Where are the Earth's sedimentary rocks generally found?
a. in regions of recent volcanic activity
b. deep within the Earth's crust
c. along the mid-ocean ridges
d. as a thin layer covering much of the continents
Which sequence of events occurs in the
formation of a sedimentary rock?
A
B
C
D
Base your answer on the
block diagram below which
shows a cross section of
Earth's crust. Letter A
identifies a lake, and letters B
through G represent different
types of bedrock.
Rock C most likely resulted from the
a. rapid cooling of lava from volcanic eruptions .
b. regional metamorphism of a previously existing
rock
c. compaction and cementation of angular quartz
fragments
d. precipitation of minerals from evaporating water
Which rock is only formed by regional
metamorphism?
a. slate
b. hornfels
c. dunite
d. marble
Particles of sediment collected from a lake bottom averaged
1.2 centimeters in diameter. If left on the lake bottom to
become buried by more sediment and compressed into rock,
these particles would form
a. sandstone
b. conglomerate
c. quartzite
d. granite
Base your answer on the cross section below. Rock units are
labeled 1 through 8. The line between A and A' indicates an unconformity.
Which rock most probably formed in the
contact metamorphic zone within rock unit 6?
a. marble
b. basalt
c. quartzite
d. hornfels
Which statement best describes the percentage of
plagioclase feldspars in a sample of gabbro?
a. The percentage of plagioclase feldspars in
gabbro can vary.
b. Gabbro always contains less plagioclase than
pyroxene.
c. Plagioclase feldspars always make up 25% of a
gabbro sample.
d. Gabbro contains no plagioclase feldspars.
Halite has three cleavage directions at 90º to each other. Which model
best represents the shape of a broken sample of halite?
A
B
C
D
Base your answer on The
diagram below shows a rock
with deformed structure and
intergrown crystals.
The rock was probably formed by
a. sediments that were deposited on the ocean floor
b. heat and pressure that changed a preexisting rock
c. volcanic lava that cooled on Earth’s surface
d. a meteor impact on Earth’s surface