4.15.F - Lesson Review: Minerals and Igneous Rocks Flashcards
All rocks are made of ___________________.
minerals
layers
mixtures
volcanic ash
sand
soil
minerals
What happens when magma cools slowly in mineral formation?
Microscopic crystals will form.
Crystals will break apart.
Crystals will form a smooth texture.
Large crystal grains will form.
Large crystal grains will form.
What happens when magma cools rapidly in mineral formation?
Crystals will form a coarse texture.
Large crystal grains will form.
Crystals will break apart.
Microscopic crystals will form.
Microscopic crystals will form.
Some minerals are made out of ____________ element(s), called ___________ element(s).
three, carbon
one, native
one, carbon
two, carbon
one, singular
two, native
one, native
What is the softest mineral on the Moh’s hardness scale?
Quartz
Calcite
Diamond
Graphite
Sulfur
Talc
Talc
What mineral can be identified by radioactivity?
Titanium
Silver
Copper
Carbon
Uranium
Gold
Uranium
Which test would you use if you wanted to see the color of the powder of a mineral?
Specific gravity
Luster
Color test
Acid test
Streak test
Hardness test
Streak test
The specific gravity of most nonmetallic minerals is _____________________.
above 5
above 10
below 3
4
below 1
7
below 3
The rock cycle indicates that each type of rock can __________.
form other rocks
all of the above
provide materials to make other rocks
be changed by forces at Earth’s surface
all of the above
The “Father of Modern Day Geology” is known to be ___________________.
James Gandolfinni
James Hutton
James Horton
James Spellman
James Hutton
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?
Igneous rock
Sedimentary rock
Metamorphic rock
Sedimentary rock
When melting of a metamorphic rock occurs, it changes into ______.
Your Answer:
magma
Where do plutonic rocks form?
While being ejected out of the volcano
At the surface of the Earth
In the Earth below ground
As pyroclastic rocks
On Pluto
In the Earth below ground
Basaltic magma ____________________________. (You may use your charts.)
forms in rifts or oceanic hotspots
forms at subduction boundaries
is sometimes explosive
has the lowest temperature
is always explosive
contains high amounts of silica
forms in rifts or oceanic hotspots
Very small crystals in an igneous rock show that it was formed ________________________.
deep in the surface of the Earth
in a short period of time
close to the surface of the Earth
in a long period of time
at a very high temperature
in a short period of time
The amount of magnesium and iron ____________________________.
increases in lighter colored rocks
increases in mafic rocks
decreases in darker colored rock
increases in rocks that are high in silicon
decreases in rocks that are mafic
increases in mafic rocks
Mafic igneous rocks contain about _______________________. (You may use your rock identification chart.)
60% silica
80% silica
100% silica
70% silica
30% silica
50% silica
50% silica
Rhyolitic magma contains ________________. (You may use your charts)
60% silica, 4–6% gases
25% silica, 4–6% gases
>70% silica, 4–6% gases
50% silica, 4–6% gases
40% silica, 4–6% gases
> 70% silica, 4–6% gases
What processes cause igneous rock to form?
Pressure and solidification
Deposition and erosion
Heat and pressure
Sedimentation and compaction
Melting and solidification
Compaction and heat
Granite is formed when magma cools slowly. Granite is a (an) ____________. (You may use your rock charts.)
intrusive igneous rock
non-foliated metamorphic rock
extrusive igneous rock
bioclastic sedimentary rock
foliated metamorphic rock
clastic sedimentary rock
intrusive igneous rock
What are the two most abundant elements in the Earth’s crust?
Carbon dioxide and argon
Gold and silver
Oxygen and nitrogen
Oxygen and silicon
Oxygen and carbon dioxide
Silicon and carbon dioxide
Oxygen and silicon
How many elements are found in most minerals?
1
20
2
3
6
6
Computers have the mineral _______________ in their motherboard.
halite
garnet
iron
gypsum
calcite
silica
silica
Luster refers to the ____________________________.
the different kinds of elements that make up the mineral
the color of the powder on a streak plate
the arrangement of the atoms or ions in a mineral
the shine of the color of the mineral
the way the mineral reflects light
ability of a mineral to hold water
the way the mineral reflects light
The mineral that shows conchoidal fracture is __________________________.
halite
calcite
gypsum
fluorite
quartz
mica
quartz
A radioactive mineral ___________________________.
glows under a black light
gives off subatomic particles
is hot to the touch
tastes salty
glows after the black light is shut off
splits light rays in two parts
gives off subatomic particles
The ______________ shows how one rock type changes into another rock type.
rock cycle
cooling process
formation of crystals
melting process
rock cycle
Sedimentary rocks are changed into sediment by____________.
compaction
weathering
melting
cementation
weathering
What are the three basic types of rock groups?
Your Answer:
Igneous, Sedimentary, Metamorphic
Of these igneous rocks, which would contain the largest crystals? (You may use your rock charts.)
Pumice
Diorite
Basalt
Andesite
Rhyolite
Obsidian
Diorite
Which is an example of an extrusive igneous rock? (You may use your igneous rock identification chart.)
Diorite
Gabbro
Granite
Pegmatite
Scoria
Scoria
Which of the following causes the melting temperature of magma to increase? (You may use your identification charts.)
Increasing the magnesium content
Increasing the potassium content
Decreasing the oxygen content
Increasing silica content
Decreasing the iron content
Decreasing the depth of the magma
Increasing the magnesium content
Pumice is an example of a(n) ______________. (You may use your charts.)
extrusive, coarse-grained igneous rock
intrusive, coarse-grained igneous rock
extrusive, vesicular igneous rock
plutonic, fine-grained igneous rock
phaneritic, coarse-grained igneous rock
porphryitic, fine-grained igneous rock
extrusive, vesicular igneous rock
Obsidian is unusual in that ___________________. (You may use your identification charts.)
it is phaneritic
it is vesicular
it is high in magnesium and iron
it is plutonic
it is always a mafic rock
even though it is dark, it is considered a felsic rock due to the silica and quartz content
even though it is dark, it is considered a felsic rock due to the silica and quartz content
