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Chapter 13 - (Q1-10) Formation Or Rocks Test Review
Test Description: CPO Science - Minerals, Rocks, and the Rock Cycle
Instructions: Answer all questions to get your test result.
1) When limestone is heated and squeezed it forms:
A
gneiss
B
granite
C
basalt
D
marble
2) Which term is not part of the commonly accepted definition of a mineral?
A
Naturally Occurring
B
Solid
C
Metamorphic
D
Defined Chemical Composition
3) How can you use the hardness of a rock to help identify what type of mineral it is?
A
Drop it onto a hard surface.
B
Use it to scratch other solid materials of known hardness.
C
By cooling and solidifying magma or lava
D
Crush it with a hammer.
4) A student broke a mineral sample with the tap of a hammer. It broke along flat surfaces. Which property was the student investigating?
A
Density
B
Cleavage
C
Porosity
D
Specific gravity
5) Classifying rocks as igneous, sedimentary, or metamorphic is based on differences in:
A
their hardness.
B
how they are formed.
C
their particle size.
D
their age.
6) Which of the following minerals is LESS hard than diamond?
A
Quartz
B
All of the above
C
Muscovite
D
Emerald
7) A glassy igneous rock that cools quickly, preventing crystals from forming is:
A
limestone.
B
obsidian.
C
granite.
D
pumice.
8) The size of the crystals of igneous rocks is determined by:
A
how fast the magma melts.
B
where the magma flows from the volcano.
C
how fast the magma cools.
D
when the magma flows from the volcano.
9) Which of the following characteristics is most TRUE of igneous rocks cooled slowly, deep underground?
A
Large crystals
B
Small crystals
C
Gas bubbles
D
Glassy appearance
10) How do igneous rocks form?
A
Under low pressure and at low temperatures
B
By erosion
C
By cooling and solidifying magma or lava
D
By compression
*select an answer for all questions
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