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Rocks And Minerals Review
Test Description: This is for your upcoming Rocks and Minerals quiz!
Instructions: Answer all questions to get your test result.
1) Which of the following is the definition of luster?
A
when minerals break, the sides of the mineral are smooth and flat
B
the way light reflects off of a mineral
C
a mineral's resistance to being scratched
D
the color of the powder left behind when a mineral is scraped across a surface
2) Which of the following is the definition of hardness?
A
when minerals break, the sides of the mineral are smooth and flat
B
the way light reflects off of a mineral
C
a mineral's resistance to being scratched
D
the color of the powder left behind when a mineral is scraped across a surface
3) Which of the following is the definition of cleavage?
A
the way light reflects off of a mineral
B
the color of the powder left behind when a mineral is scraped across a surface
C
when minerals break, the sides of the mineral are smooth and flat
D
a mineral's resistance to being scratched
4) Which of the following is the definition of streak?
A
the way light reflects off of a mineral
B
a mineral's resistance to being scratched
C
the color of the powder left behind when a mineral is scraped across a surface
D
when minerals break, the sides of the mineral are smooth and flat
5) Which of the following is NOT a characteristic that must be present for a substance to be considered a mineral?
A
usually made up of 1 or more types of minerals
B
has a crystal structure
C
formed naturally
D
definite chemical composition
6) If a rock is an extrusive igneous rock, then...
A
magma cooled inside of the Earth and it has fine-grained crystals (small crystals)
B
lava cooled at the surface of the Earth and it has fine-grained crystals (small crystals)
C
magma cooled inside of the Earth and it has coarse-grained crystals (large crystals)
D
lava cooled at the surface of the Earth and it has coarse-grained crystals (large crystals)
7) What type of rock is formed when pieces of rocks and minerals are buried, compacted, and cemented together?
A
metamorphic rock
B
clastic sedimentary rocks
C
chemical sedimentary rocks
D
igneous rock
8) What type of rock is formed when heat and/or pressure causes older rocks to change into different types of rocks?
A
igneous rocks
B
clastic sedimentary rocks
C
metamorphic rocks
D
chemical sedimentary rocks
9) Which of the following is the formula for density?
A
D = V*M
B
D = M/V
C
D = V/M
D
D = M*V
10) A graduated cylinder or beaker is best used for...
A
determining the height of a mineral
B
measuring the mass of a mineral
C
finding the volume of a mineral using water displacement
D
drinking clean water
11) What is the difference between lava and magma?
A
lava is liquid rock that has reached the Earth's surface while magma is liquid rock that is still inside the earth
B
lava and magma are the same
C
lava is liquid rock that is still inside the Earth while magma is liquid rock that has reached the Earth's surface
D
inside of the Earth, lava and magma are the same, but once the liquid rock has reached the surface it is only called magma
12) When using the Mohs Hardness Scale, what happens when a higher number rubs against a lower number?
A
they both feel awkward
B
the higher number scratches the lower number
C
the lower number scratches the higher number
D
the lower number cries a little
13) Use the “Physical Properties of Some Common Minerals” Chart and the Mohs Hardness Scale to identify the mineral described: The mineral looks coppery-red, and can be scratched by fluorite. It has metallic luster.
A
sulfur
B
copper
C
feldspar
D
halite
14) Use the “Physical Properties of Some Common Minerals” Chart and the Mohs Hardness Scale to identify the mineral described: Green, nonmetallic mineral that leaves a colorless streak; it can be scratched by a penny, but not easily by a fingernail.
A
muscovite
B
bauxite
C
talc
D
graphite
15) Use the “Physical Properties of Some Common Minerals” Chart and the Mohs Hardness Scale to identify the mineral described: pale white stone, hexagonal crystals, leaves a white streak, and can be scratched by a knife, but not by a fingernail
A
quartz
B
talk
C
corundum
D
dolomite
16) Use the “Physical Properties of Some Common Minerals” Chart and the Mohs Hardness Scale to identify the mineral: brown mineral, leaves a brown streak, fractures irregularly, and be scratched by a steel file but not by a knife; has metallic luster
A
a garnet
B
halite
C
chromite
D
gypsum
17) Which of the following describes a set of minerals?
A
minerals that have all of the same ingredients, even though those ingredients are NOT present in the same amounts
B
minerals that have all of the same ingredients and those ingredients are present in the EXACT same amounts
C
it doesn't matter, any two rocks are going to be the same
D
minerals that only have one ingredient because minerals can only have one ingredient in order to be a mineral
18) A streak plate has a hardness of 7. If a mineral has a hardness of 4, then...
A
it would do nothing because hardness doesn't have anything to do with scratching or leaving a streak
B
it would leave a streak because it is softer than the streak plate
C
it would scratch the streak plate because it is harder than the streak plate
D
they would shake hands and part ways as friends
19) The volume of a mineral is 10 mL and the mass is 30 g. What is the density of this mineral?
A
0.3
B
300 g
C
3 g/mL
D
0.3 g/mL
20) How does a glassy igneous rock form?
A
when the heat and pressure are too great and no bubbles can form
B
when magma cools slowly inside of the Earth
C
when lava cools quickly on the surface of the earth
D
when lava cools extremely quickly (such as coming in contact with cold water or ice) and has no time to form crystals
*select an answer for all questions
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