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WorksheetsJMS Rocks & Minerals Review
Total questions: 30
Worksheet time: 28mins
Name
Class
Date
1.
Is coal a mineral?
a)
No because it is a liquid and minerals must be solid.
b)
No because it is made from organic matter and minerals must be inorganic.
c)
Yes because it is solid.
d)
Yes because it has a definite chemical composition.
2.
A student has found an object that she thinks is a mineral. What question should she first ask in determining if the object is really a mineral?
a)
Where was the object found?
b)
Does the object have a crystal structure?
c)
How many samples of the object were found?
d)
Can its surface be scratched by a fingernail?
3.
What value is given to the hardest mineral on the Mohs scale?
a)
10
b)
100
c)
1
d)
1,000
4.
What mineral property is being shown?
a)
density
b)
cleavage
c)
streak
d)
fracture
5.
A student is investigating several samples of rock. The student notices that all of the rocks look layered, as if they had been pressed together. What type of rock does this student most likely have?
a)
sedimentary
b)
metamorphic
c)
igneous
d)
any rock
6.
What is the difference between cleavage and fracture?
a)
Cleavage and fracture actually mean the same thing.
b)
Cleavage describes a mineral breaking along flat, even surfaces; fracture describes a mineral breaking along rough or curved surfaces.
c)
Cleavage describes a mineral breaking along rough or curved surfaces; fracture describes a mineral breaking along flat, even surfaces.
d)
Cleavage refers to the powder a mineral leaves when it is scratched on an unglazed tile; fracture refers to a mineral’s resistance to being scratched.
7.
How can a metamorphic rock become an igneous rock?
a)
It would have to undergo heat and pressure.
b)
It would have to be weathered and eroded.
c)
It would have to be compacted and cemented.
d)
It would have to be melted and cooled.
8.
What is the relationship between rocks and minerals?
a)
Minerals are mainly composed of rocks.
b)
Rocks are mainly composed of minerals.
c)
Minerals are weathered pieces of rock.
d)
Rocks are used to identify minerals.
9.
Hematite is a mineral that comes in several different colors, ranging from red to black to sparkly gray. They all have a hardness between 5 and 6 on the Mohs hardness scale. If you were trying to find out if a mineral sample is indeed hematite, what is the best property test to perform?
a)
Rubbing the mineral across a tile to discover what color streak it has.
b)
Scratching a knife into the mineral to find out its cleavage.
c)
Drawing and coloring a picture of the mineral to note its color.
d)
Putting the mineral on a scale to weigh it.
10.
How could an igneous rock become a metamorphic rock?
a)
It would have to be melted and cooled.
b)
It would have to eroded and deposited.
c)
It would have to undergo heat and pressure.
d)
It would have to dissolve and evaporate.
11.
Sandstone forms when sediments are pressed and cemented together. It should be classified as which type of rock?
a)
metamorphic
b)
igneous
c)
sedimentary
12.
Biotite is a mineral that has flat, even surfaces when it is broken apart. What mineral property does this show?
a)
fracture
b)
cleavage
c)
hardness
d)
streak
13.
A teacher gave each group a solid object and asked them to determine if the object they have is a mineral or a rock. Which group’s plan for their investigation will more than likely yield the best results?
a)
Group A: Begin by scratching the object with each group member’s fingernail and recording the results. Finish by looking for pictures of the object in the science textbook.
b)
Group B: Begin by looking for any signs of visible grains, crystals, and other pieces of sediment and recording the results. Finish by using a magnifying glass to look for organic material, such as shells or bones, in the object.
c)
Group C: Begin by rubbing the object against a piece of tile and recording the color of the streak. Finish by submerging the object in a cup of vinegar.
d)
Group D: Begin by testing the object’s magnetism with a magnet and recording the results. Finish by exposing the object to ultraviolet light.
14.
What is happening along path #1?
a)
The weathering and deposition of sediment
b)
The heat and pressure below Earth
c)
The compaction of loose rocks
d)
The cooling of lava
15.
Which is NOT question used to determine if an object is a mineral?
a)
Is it a solid?
b)
Is it used as a fuel?
c)
Does it have a crystal structure?
d)
Does it have a definite chemical composition?
16.
The crystals in basalt are small and hard to see without a magnifying glass. What word is used to describe basalt's texture?
a)
coarse-grained
b)
fine-grained
c)
medium-grained
d)
glassy
17.
How did the crystals in this sample of diorite form?
a)
From fast cooling water
b)
From slow cooling sediment
c)
From slow cooling magma
d)
From fast cooling magma
18.
An unknown object can scratch gypsum but is scratched by apatite. What could this object possibly be?
a)
topaz
b)
calcite
c)
talc
d)
diamond
19.
What process is happening in step #2?
a)
the formation of sediment through weathering
b)
the formation of sediment through erosion
c)
the formation of sediment through cooling
d)
the formation of sediment through compaction
20.
Why would a construction worker want to use corundum as a building material?
a)
It is a soft mineral that is easy to crush and mix into concrete.
b)
It is a mineral that cleaves easily so it's easy to work with.
c)
It is a highly reflective mineral that would be good as roofing material.
d)
It is a hard mineral that would be useful in making floors.
21.
Why does obsidian have virtually no visible crystals?
a)
It cooled to slowly for small crystals to form.
b)
It is too shiny to see them.
c)
It cooled too quickly for crystals to form.
d)
It was too tightly compacted for crystals to show.
22.
What kind of texture does this rock have?
a)
coarse-grained
b)
fine-grained
c)
medium-grained
d)
glassy
23.
Why is this object NOT a mineral?
a)
It is organic.
b)
It does not have a definite chemical composition.
c)
It is showing fracture.
d)
It is not completely solid.
24.
What has to happen to any rock before it can become an igneous rock?
a)
It has to be moved to the top of a mountain. Then it has to fall into a valley.
b)
It has to be pushed underground and exposed to heat and pressure.
c)
It has to be weathered. Then it has to be deposited in a new location.
d)
It has to melt to become molten material. Then it has to cool.
25.
What test is being performed on the mineral in the picture?
a)
A scratch test to find the mineral's density.
b)
A scratch test to find the mineral's streak.
c)
A scratch test to find the mineral's hardness.
d)
A scratch test to find the mineral's cleavage.
26.
What test is being performed on the mineral in the picture?
a)
A scratch test to find the mineral's density.
b)
A scratch test to find the mineral's streak.
c)
A scratch test to find the mineral's hardness.
d)
A scratch test to find the mineral's cleavage.
27.
What processes are happening in step #4?
a)
heat and pressure
b)
melting and pressure
c)
melting and cooling
d)
weathering and erosion
28.
What step in the formation of sedimentary rock is being shown by the picture?
a)
compaction
b)
weathering
c)
cementation
d)
erosion
29.
What step in the formation of sedimentary rock is being shown by the picture?
a)
compaction
b)
weathering
c)
cementation
d)
erosion
30.
What process is happening in step #5?
a)
weathering
b)
melting
c)
pressure
d)
cooling
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