Igneous Rocks
Practice Test
1.
What type of atomic particle has a negative charge?
a.
an isotope
b.
a proton
c.
a neutron
d.
an electron
2.
What is the electromagnetic spectrum?
a.
frequencies measured by satellites
b.
energy emitted from Earth
c.
the arrangement of electromagnetic radiation
d.
visible light
3.
What is the last mineral to form on the left branch of Bowen's reaction series?
a.
pyroxene
b.
quartz
c.
olivine
d.
feldspar
4.
A __________ is composed of two or more atoms held together by covalent bonds.
a.
covalent bond
b.
ionic bond
c.
a gas
d.
molecule
5.
What is an example of an igneous ore deposit?
a.
placer deposits
b.
porphyritic deposits
c.
metal-rich quartz veins
d.
hydrothermal deposits
6.
What is caused by the presence of trace elements in a mineral?
a.
streak
b.
luster
c.
color
d.
harness
7.
According to the symbols shown in the figure, in which state of matter do these elements occur?
a.
plasma
b.
gas
c.
liquid
d.
solid
8.
Bases produce __________ in solution.
a.
helium ions
b.
oxygen ions
c.
hydroxide ions
d.
hydrogen ions
9.
Graphs and charts of data can be used for __________.
a.
testing the independent variable
b.
formation of a hypothesis
c.
data analysis
d.
deciding on a control
10.
What does GPS stand for?
a.
Geographic Positioning System
b.
Global Potential Satellite
c.
Global Positioning System
d.
Geodial Position Satellite
11.
What part of an experiment is used to show that results are due to the condition being tested?
a.
dependent variable
b.
control
c.
independent variable
d.
hypothesis
12.
What are the common minerals called?
a.
igneous minerals
b.
abundant minerals
c.
crystal minerals
d.
rock-forming minerals
13.
What is an example of an SI unit of area?
a.
cm
3
b.
m
2
c.
g/mL
d.
cm
14.
Which crystal shown in the figure is the type of crystal found in pyrite?
a.
3
b.
2
c.
none are found in pyrite
d.
1
15.
If a mineral breaks along distinct planes, it is said to have __________.
a.
cleavage
b.
a dull luster
c.
fracture
d.
a high specific gravity
16.
What is the source of heat inside Earth that melts rocks into magma?
a.
other molten rocks
b.
the decay of radioactive elements
c.
Earth's core is hotter for no reason.
d.
geothermal energy
17.
Which rock shown in the figure cooled the fastest?
a.
glassy
b.
porphorytic
c.
fine-grained
d.
coarse-grained
18.
The boundaries of time zones correspond __________.
a.
exactly to lines of longitude
b.
roughly to lines of longitude
c.
roughly to lines of latitude
d.
exactly to lines of latitude
19.
The equator circles Earth __________.
a.
around Earth at 66°N
b.
between the north and south poles
c.
halfway between the north and south poles
d.
at the same location as the International Date Line
20.
What is the best method to show a change in volume over time?
a.
theory
b.
law
c.
graph
d.
model
