Igneous Rocks
Practice Test
1.
A mineral is __________ if it can be mined for profit.
a.
an igneous rock
b.
an ore
c.
a crystal
d.
a rock
2.
What is the best method to show a change in volume over time?
a.
theory
b.
law
c.
graph
d.
model
3.
A __________ is composed of two or more atoms held together by covalent bonds.
SC.A.1.4.5
a.
covalent bond
b.
molecule
c.
a gas
d.
ionic bond
4.
What is the standard SI unit for measuring length?
a.
liter
b.
foot
c.
mile
d.
meter
5.
An __________ is an explanation that is based on the results of repeated experiments.
SC.H.1.4.1
a.
control
b.
theory
c.
law
d.
hypothesis
6.
How are places on Earth located in an east or west direction?
a.
the tropic of Capricorn
b.
lines of latitude
c.
lines of longitude
d.
the equator
7.
What is the molten material under Earth's crust called?
a.
basalt
b.
magma
c.
minerals
d.
solution
8.
What branch of Bowen's reaction series cools with a continuous change in composition?
SC.D.1.4.2
a.
the silica chains
b.
the iron-magnesium groups
c.
the carbonates
d.
the feldspars
9.
What is an example of an SI unit of area?
a.
cm
b.
g/mL
c.
cm
3
d.
m
2
10.
An igneous rock with two distinct grain sizes has a __________ texture.
SC.D.1.4.2
a.
fine-grained
b.
porphyritic
c.
coarse-grained
d.
felsic
11.
Peridotite and dunite have __________ compositions.
SC.D.1.4.2
a.
ultramafic
b.
felsic
c.
mafic
d.
intermediate
12.
What type of atomic particle has a negative charge?
a.
a proton
b.
an electron
c.
a neutron
d.
an isotope
13.
What particles make up the nucleus of an atom?
a.
neutrons and electrons
b.
electrons only
c.
protons and neutrons
d.
protons only
14.
What is the electromagnetic spectrum?
a.
the arrangement of electromagnetic radiation
b.
visible light
c.
energy emitted from Earth
d.
frequencies measured by satellites
15.
What is the numerical value for the hardest mineral on the Mohs hardness scale?
a.
100
b.
11
c.
10
d.
20
16.
The attraction of two atoms for a shared pair of electrons that hold the atoms together is called __________.
SC.A.1.4.5
a.
a chemical reaction
b.
a covalent bond
c.
an ionic bond
d.
a compound
17.
Which is not a characteristic of a mineral?
a.
organic solid
b.
definite crystal structure
c.
naturally occurring
d.
specific chemical composition
18.
Which method uses sound waves for remote sensing?
a.
sonar
b.
GPS
c.
Topex/Poseison satellite
d.
Landsat satellite
19.
What is the distance of 1° longitude?
a.
it changes from 111 km to a point
b.
60 km
c.
360 km
d.
it is always 111 km
