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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 color of the powder left behind when a mineral is scraped across a surface
C
a mineral's resistance to being scratched
D
the way light reflects off of a mineral
2) Which of the following is the definition of hardness?
A
the color of the powder left behind when a mineral is scraped across a surface
B
the way light reflects off of a mineral
C
when minerals break, the sides of the mineral are smooth and flat
D
a mineral's resistance to being scratched
3) Which of the following is the definition of cleavage?
A
when minerals break, the sides of the mineral are smooth and flat
B
a mineral's resistance to being scratched
C
the way light reflects off of a mineral
D
the color of the powder left behind when a mineral is scraped across a surface
4) Which of the following is the definition of streak?
A
the way light reflects off of a mineral
B
when minerals break, the sides of the mineral are smooth and flat
C
a mineral's resistance to being scratched
D
the color of the powder left behind when a mineral is scraped across a surface
5) Which of the following is NOT a characteristic that must be present for a substance to be considered a mineral?
A
has a crystal structure
B
usually made up of 1 or more types of minerals
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
chemical sedimentary rocks
B
clastic sedimentary rocks
C
igneous rock
D
metamorphic rock
8) What type of rock is formed when heat and/or pressure causes older rocks to change into different types of rocks?
A
chemical sedimentary rocks
B
clastic sedimentary rocks
C
metamorphic rocks
D
igneous rocks
9) Which of the following is the formula for density?
A
D = V/M
B
D = V*M
C
D = M*V
D
D = M/V
10) A graduated cylinder or beaker is best used for...
A
measuring the mass of a mineral
B
finding the volume of a mineral using water displacement
C
determining the height of a mineral
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 is liquid rock that is still inside the Earth while magma is liquid rock that has reached the Earth's surface
C
inside of the Earth, lava and magma are the same, but once the liquid rock has reached the surface it is only called magma
D
lava and magma are the same
12) When using the Mohs Hardness Scale, what happens when a higher number rubs against a lower number?
A
the lower number cries a little
B
they both feel awkward
C
the lower number scratches the higher number
D
the higher number scratches the lower number
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
feldspar
B
halite
C
sulfur
D
copper
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
talc
C
bauxite
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
dolomite
D
corundum
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
chromite
B
a garnet
C
halite
D
gypsum
17) Which of the following describes a set of minerals?
A
it doesn't matter, any two rocks are going to be the same
B
minerals that have all of the same ingredients and those ingredients are present in the EXACT same amounts
C
minerals that only have one ingredient because minerals can only have one ingredient in order to be a mineral
D
minerals that have all of the same ingredients, even though those ingredients are NOT present in the same amounts
18) A streak plate has a hardness of 7. If a mineral has a hardness of 4, then...
A
it would leave a streak because it is softer than the streak plate
B
it would scratch the streak plate because it is harder than the streak plate
C
it would do nothing because hardness doesn't have anything to do with scratching or leaving a streak
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
3 g/mL
B
0.3 g/mL
C
300 g
D
0.3
20) How does a glassy igneous rock form?
A
when magma cools slowly inside of the Earth
B
when lava cools extremely quickly (such as coming in contact with cold water or ice) and has no time to form crystals
C
when the heat and pressure are too great and no bubbles can form
D
when lava cools quickly on the surface of the earth
*select an answer for all questions
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