Rocks And Minerals Review Question Preview (ID: 30608)
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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) it doesn't matter, any two rocks are going to be the same
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 and those ingredients are present in the EXACT same amounts
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) halite
b) gypsum
c) chromite
d) a garnet
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) talc
b) muscovite
c) graphite
d) bauxite
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) dolomite
b) quartz
c) corundum
d) talk
When using the Mohs Hardness Scale, what happens when a higher number rubs against a lower number?
a) the higher number scratches the lower number
b) the lower number scratches the higher number
c) they both feel awkward
d) the lower number cries a little
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) halite
b) sulfur
c) feldspar
d) copper
What is the difference between lava and magma?
a) lava is liquid rock that is still inside the Earth while magma is liquid rock that has reached the Earth's surface
b) lava is liquid rock that has reached the Earth's surface while magma is liquid rock that is still inside the earth
c) lava and magma are the same
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
What type of rock is formed when pieces of rocks and minerals are buried, compacted, and cemented together?
a) igneous rock
b) clastic sedimentary rocks
c) chemical sedimentary rocks
d) metamorphic rock
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) igneous rocks
c) metamorphic rocks
d) clastic sedimentary rocks
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
A graduated cylinder or beaker is best used for...
a) drinking clean water
b) measuring the mass of a mineral
c) finding the volume of a mineral using water displacement
d) determining the height of a mineral
If a rock is an extrusive igneous rock, then...
a) lava cooled at the surface of the Earth and it has fine-grained crystals (small crystals)
b) magma cooled inside of the Earth and it has fine-grained crystals (small crystals)
c) lava cooled at the surface of the Earth and it has coarse-grained crystals (large crystals)
d) magma cooled inside of the Earth and it has coarse-grained crystals (large crystals)
Which of the following is the definition of streak?
a) a mineral's resistance to being scratched
b) the way light reflects off of a mineral
c) when minerals break, the sides of the mineral are smooth and flat
d) the color of the powder left behind when a mineral is scraped across a surface
Which of the following is NOT a characteristic that must be present for a substance to be considered a mineral?
a) definite chemical composition
b) formed naturally
c) usually made up of 1 or more types of minerals
d) has a crystal structure
Which of the following is the definition of cleavage?
a) a mineral's resistance to being scratched
b) the way light reflects off of a mineral
c) when minerals break, the sides of the mineral are smooth and flat
d) the color of the powder left behind when a mineral is scraped across a surface
Which of the following is the definition of luster?
a) a mineral's resistance to being scratched
b) the way light reflects off of a mineral
c) when minerals break, the sides of the mineral are smooth and flat
d) the color of the powder left behind when a mineral is scraped across a surface
Which of the following is the definition of hardness?
a) a mineral's resistance to being scratched
b) the way light reflects off of a mineral
c) when minerals break, the sides of the mineral are smooth and flat
d) the color of the powder left behind when a mineral is scraped across a surface
A streak plate has a hardness of 7. If a mineral has a hardness of 4, then...
a) it would scratch the streak plate because it is harder than the streak plate
b) it would leave a streak because it is softer 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
The volume of a mineral is 10 mL and the mass is 30 g. What is the density of this mineral?
a) 300 g
b) 0.3 g/mL
c) 3 g/mL
d) 0.3
How does a glassy igneous rock form?
a) when magma cools slowly inside of the Earth
b) when lava cools quickly on the surface of the earth
c) when the heat and pressure are too great and no bubbles can form
d) when lava cools extremely quickly (such as coming in contact with cold water or ice) and has no time to form crystals
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