Igneous Rocks
Practice Test
1.
What is the dependent variable in the graph in Figure 3?
Time (s)
10
20
30
40
50
60
70
80
Mass of product (g)
1.5
3.2
4.3
6.0
7.7
9.2
10.4
12.1
a.
mass
b.
product versus time
c.
weight
d.
time
2.
If a mineral breaks along distinct planes, it is said to have __________.
a.
cleavage
b.
fracture
c.
a high specific gravity
d.
a dull luster
3.
According to the figure, what types of minerals are ultramafic?
a.
amphibole and pyronene
b.
feldspar and quartz
c.
pyroxine and olivine
d.
feldspar and biotite
4.
What is the molten material under Earth's crust called?
a.
minerals
b.
solution
c.
magma
d.
basalt
5.
What is the smallest particle of an element?
a.
an atom
b.
a proton
c.
a neutron
d.
an isotope
6.
According to the figure showing a limited view of Bowen's reaction series, what type of mineral causes a continuous reaction series?
a.
iron
b.
sodium
c.
calcium
d.
magnesium
7.
According to the Table, which city is farthest north?
City
Latitude
Longitude
Cape Town, South Africa
34°S
18°N
Pontianik, Indonesia
0°
109°E
Nome, Alaska
65°N
165°W
Quito Ecuador
0°
79°W
Stockholm, Sweden
59°N
18°E
Wellington, New Zealand
41°S
175°E
a.
Wellington, New Zealand
b.
Stockholm, Sweden
c.
Cape Town, South Africa
d.
Pontianak, Indonesia
8.
Why does a water molecule have a bent shape?
a.
it has ionic bonds
b.
it's a polar molecule
c.
because it occurs on Earth as a solid, liquid, and a gas
d.
it's a compound
9.
An Mg +2 particle has __________ electrons.
a.
gained two
b.
gained one
c.
lost four
d.
lost two
10.
What particle(s) make up the nucleus of an atom?
a.
protons only
b.
neutrons and electrons
c.
electrons only
d.
protons and neutrons
11.
Which crystal shown in the figure is hexagonal?
a.
none are hexagonal
b.
3
c.
2
d.
1
12.
How many meters are in 1 km?
a.
10 m
b.
1/100 m
c.
1000 m
d.
1/1000 m
13.
How are places on Earth located in an east or west direction?
a.
the equator
b.
lines of latitude
c.
lines of longitude
d.
the tropic of Capricorn
14.
An igneous rock with two distinct grain sizes has a __________ texture.
a.
felsic
b.
porphyritic
c.
fine-grained
d.
coarse-grained
15.
What describes the way a mineral feels?
a.
hardness
b.
streak
c.
luster
d.
texture
16.
Peridotite and dunite have __________ compositions.
a.
mafic
b.
intermediate
c.
felsic
d.
ultramafic
17.
What is the best method to show a change in volume over time?
a.
theory
b.
graph
c.
model
d.
law
18.
How many satellites are in the GPS?
a.
4
b.
6
c.
24
d.
50
19.
What is the electromagnetic spectrum?
a.
visible light
b.
energy emitted from Earth
c.
the arrangement of electromagnetic radiation
d.
frequencies measured by satellites
20.
What is a hypothesis?
a.
A hypothesis is the same as identifying the problem in the scientific method.
b.
A hypothesis is the first step of the scientific method.
c.
A hypothesis is the answer to a scientific question.
d.
A hypothesis is a suggested explanation of an observation.
