Plate Tectonics
Practice Test
1.
__________ explains the relationship between cooling magma and mineral formation.
SC.D.1.4.2
a.
Geothermal gradients
b.
Partial melting
c.
Bowen's reaction series
d.
Branches of crystallization
2.
Extrusive rocks have fine-grained textures because __________.
SC.D.1.4.2
a.
they cooled quickly
b.
they cooled inside Earth's crust
c.
they are derived from volcanoes
d.
they cooled slow
3.
What are wind-driven currents called?
a.
ocean currents
b.
surface currents
c.
density currents
d.
spring tides
4.
What determines the speed of waves in deep water?
a.
direction of waves
b.
wave height
c.
wavelength
d.
surface currents
5.
What is the electromagnetic spectrum?
a.
energy emitted from Earth
b.
visible light
c.
frequencies measured by satellites
d.
the arrangement of electromagnetic radiation
6.
An igneous rock with two distinct grain sizes has a __________ texture.
SC.D.1.4.2
a.
fine-grained
b.
porphyritic
c.
felsic
d.
coarse-grained
7.
The __________ states that Earth's crust and ridged upper mantle are broken into plates that move at different rates and in different directions.
SC.D.1.4.2
a.
hypothesis of continental movement
b.
theory of plate tectonics
c.
hypothesis of continental drift
d.
theory of seafloor spreading
8.
__________ are submerged basaltic volcanoes more than 1 km high.
SC.D.1.4.2
a.
Seamounts
b.
Submarine canyons
c.
Shelf breaks
d.
Fracture zones
9.
When a divergent plate boundary forms on continents, a __________ forms.
SC.D.1.4.2
a.
crater
b.
rift valley
c.
mid-continent ridge
d.
volcano
10.
How does a Landsat satellite differentiate between objects on Earth's surface?
a.
Landsat measures the longest frequencies of electromagnetic radiation from Earth.
b.
Features on Earth radiate warmth at different frequencies, which show up as different colors on Landsat images.
c.
Landsat satellites take pictures using visible light.
d.
Landsat uses a single detector to measure the intensities of energy.
11.
What is the numerical value for the hardest mineral on the Mohs hardness scale?
a.
100
b.
10
c.
20
d.
11
12.
How are the convection currents set in motion?
SC.D.1.4.2
a.
slab push and ridge pull
b.
spreading mid-ocean ridges
c.
the heat from radioactive decay
d.
slab push
13.
Rocks close to mid-ocean ridges are __________ rocks far from mid-ocean ridges.
SC.D.1.4.2
a.
older than
b.
the same age as
c.
younger than
d.
a different composition than
14.
The supercontinent from Wegener's theory of continental drift is called __________.
SC.D.1.4.3
a.
North America
b.
Gondwanaland
c.
Laurasia
d.
Pangaea
15.
Harry Hess' theory of __________ explained how ocean crust is generated and destroyed.
SC.D.1.4.2
a.
continental movement
b.
seafloor spreading
c.
plate tectonics
d.
continental drift
16.
__________ is the measure of how easily a mineral can be scratched.
a.
Specific gravity
b.
Streak
c.
Luster
d.
Hardness
17.
What evidence did Wegener use to estimate the time of Pangaea's break up?
SC.D.1.4.3
a.
coal deposits
b.
magnetic isochrons
c.
fossil data
d.
ocean-floor topography
18.
How are submarine canyons formed
SC.D.1.4.2
a.
runoff
b.
longshore current
c.
rivers
d.
turbidity currents
19.
What is thought to be the driving mechanism of plate movement?
SC.D.1.4.2
a.
continental drifting
b.
volcanoes
c.
convection currents in the mantle
d.
conduction of heat in the mantle
