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Rocks And Minerals
Test Description: Chapter 14
Instructions: Answer all questions to get your test result.
1) The formation of igneous rocks would be most closely associated with:
A
heat.
B
deposition.
C
weathering.
D
erosion.
2) The “hardness” of a mineral means its ability to resist being:
A
scratched by other solid materials.
B
broken by dropping it onto a hard surface.
C
melted by subjecting it to heat.
D
crushed with a hammer.
3) A student tested a mineral sample by tapping it with a hammer. It broke along flat surfaces. The mineral property demonstrated by the student’s test is:
A
specific gravity
B
porosity.
C
density.
D
cleavage.
4) Classifying rocks as igneous, sedimentary, or metamorphic is based on differences in their:
A
hardness.
B
age.
C
particle size.
D
formation.
5) Which of the igneous rocks cooled most quickly?
A
Andesite
B
Pegmatite
C
Rhyolite
D
Obsidian
6) When layers of sediment are pressed together, it is known as:
A
crystallizing.
B
cementing.
C
intrusive.
D
compaction.
7) A metamorphic rock can be formed when heat and pressure change:
A
igneous rocks.
B
All of the above
C
sedimentary rocks.
D
metamorphic rocks
8) Quartz and feldspar are two inorganic, solid, naturally-occurring substances that are each an example of a(n) _______________.
A
intrusive
B
rocks.
C
extrusive
D
minerals.
9) The cooling and crystallizing of lava or magma cause the formation of _______________ rock
A
sedimentary
B
all of the above
C
igneous
D
metamorphic
10) Coal is formed when the remains of plants are buried by sediment and compressed between other rocks. Which rock type would best describe coal?
A
Sedimentary
B
Igneous
C
Sediment
D
Metamorphic
11) What process must occur for igneous rock to form from existing rock?
A
Lava must erupt from a volcano.
B
The rock must be eroded.
C
Pressure must act on the rock.
D
Heat must melt the rock.
12) Which best describes the rock cycle?
A
a series of processes describing how one type of rock can become another type of rock
B
a method to identify the composition of crystals and minerals
C
a process to describe how different types of fossils are transformed into rocks
D
the shifting of tectonic plates as they move over the Earth’s surface
13) Which mineral bubbles with HCl (hydrochloric acid)?
A
Galena
B
Sulfur
C
Calcite
D
Halite
14) Heat and pressure can transform igneous rock into metamorphic rock. What processes can transform igneous rock into sedimentary rock?
A
convection and radiation
B
heat and pressure
C
melting and cooling
D
erosion and cementation
15) Which mineral cleaves in thin sheets or one direction?
A
Muscovite (mica)
B
Calcite
C
Gypsum
D
Talc
16) Which property test is the least helpful?
A
luster
B
color
C
cleavage
D
streak
17) Which mineral forms when water evaporates from a solution of salt and water?
A
Halite
B
Gypsum
C
Calcite
D
Quartz
18) What is the way the mineral shines in light?
A
streak
B
cleavage
C
color
D
luster
19) Streak is the color of a mineral's ___________.
A
Surface
B
Powder
C
Reflection
D
Shadow
20) What is the numeric scale used to express the hardness of minerals?
A
Mohs Scale
B
Wiseman scale
C
Mineral Mode Scale
D
Hard Count Scale
*select an answer for all questions
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