Modified True/False
Indicate
whether the statement is true or false. If false, change the identified word or phrase to make
the statement true.
|
|
|
1.
|
The huge landmass composed of earlier forms of today’s contents was named
Pangaea by Wegener. _________________________
|
|
|
2.
|
Continental plates are composed of basalt, and are thicker and less dense
than oceanic plates. _________________________
|
|
|
3.
|
Long chains of undersea mountains are called mid-ocean ridges.
_________________________
|
|
|
4.
|
Sea-floor spreading is the tectonic process that occurs at subduction
zones. _________________________
|
|
|
5.
|
The boundary where two lithospheric plates are moving apart from each other is
referred to as a divergent plate boundary. _________________________
|
|
|
6.
|
Old crust is consumed into the mantle at a transform plate boundary.
_________________________
|
|
|
7.
|
Scientists have used volcanoes to help locate transform plate boundaries.
_________________________
|
|
|
8.
|
Metamorphic rocks are formed from intense heat and pressure at convergent
plate boundaries. _________________________
|
|
|
9.
|
Basalt is a metamorphic rock that is usually formed when limestone is
subjected to intense heat and pressure. _________________________
|
Multiple Choice
Identify the
choice that best completes the statement or answers the question.
|
|
|
10.
|
____ was the scientist who put forth the idea of continental drift.
a. | Charles Darwin | c. | Isaac Newton | b. | Alfred Wegener | d. | Thomas Edison |
|
|
|
11.
|
The idea that continents move slowly on Earth’s surface is known
as:
a. | sea-floor spreading. | c. | continental drift. | b. | subduction. | d. | convection
cells. |
|
|
|
12.
|
____ is the name given to the ancient supercontinent composed of earlier forms
of today’s continents.
a. | Pangea | c. | Gondwanaland | b. | Laurasia | d. | Bronson Hill |
|
|
|
13.
|
Wegener’s evidence for continental drift included all of the following
EXCEPT:
a. | matching plant fossils. | c. | matching river
beds. | b. | matching mountain ranges. | d. | matching coal beds. |
|
|
|
14.
|
Large pieces of Earth’s crust that move over the aesthenosphere are known
as:
a. | lithospheric plates. | c. | metamorphic plates. | b. | crustal plates. | d. | mid-ocean
ridges. |
|
|
|
15.
|
What type of rock is continental crust primarily made of?
a. | Granite | c. | Limestone | b. | Basalt | d. | Marble |
|
|
|
16.
|
What type of rock is oceanic crust primarily made of?
a. | Granite | c. | Limestone | b. | Basalt | d. | Marble |
|
|
|
17.
|
The sinking of one lithospheric plate under another lithospheric plate is known
as:
a. | sea-floor spreading. | c. | divergence. | b. | subduction. | d. | rifting. |
|
|
|
18.
|
Which scientist’s work inspired a tremendous surge in scientific progress
on the topic of plate tectonics?
a. | Wegener | c. | Pangaea | b. | Hess | d. | Einstein |
|
|
|
19.
|
Long chains of undersea mountains are known as:
a. | deep-ocean trenches. | c. | rift-valleys. | b. | hot spots. | d. | mid-ocean
ridges. |
|
|
|
20.
|
What type of landform is formed by a mantle plume hot spot?
a. | Rift valley | c. | Mountain | b. | Island chain | d. | Fault |
|
|
|
21.
|
____ is the process by which new ocean floor is created and causes the
continents to “drift”.
a. | Subduction | c. | Convection | b. | Sea-floor spreading | d. | Converging |
|
|
|
22.
|
What question(s) did an understanding of plate tectonics allow us to
answer?
a. | Why are earthquakes located where they are? | b. | Why are volcanoes
located where they are? | c. | Why do trees have rings? | d. | Both a and
b |
|
|
|
23.
|
One of the main pieces of evidence for sea-floor spreading is:
a. | fossils. | c. | earthquakes. | b. | coal beds. | d. | magnetic
patterns. |
|
|
|
24.
|
Convection cells in ____ are responsible for the movement of tectonic
plates.
a. | Upper Mantle | b. | Outer Core | c. | Lithosphere | d. | Lower
Mantle |
|
|
|
25.
|
A rising mantle plume in the mantle may divide the lithosphere above and form
a:
a. | deep-ocean trench. | c. | subduction zone. | b. | mountain range. | d. | mid-ocean
ridge. |
|
|
|
26.
|
A ____ boundary occurs where two plates are moving apart from each other.
a. | transform | b. | convergent | c. | divergent | d. | subduction |
|
|
|
27.
|
____ is the distinctive lava found at mid-ocean ridges.
a. | Basalt lava | b. | Pillow lava | c. | Hot Spot lava | d. | Pahoehoe |
|
|
|
28.
|
Divergent boundaries found on land are known as:
a. | mid-continent ridges. | c. | rift valleys. | b. | volcanic island arc. | d. | trenches. |
|
|
|
29.
|
The valleys that form in the ocean floor when two oceanic plates collide are
called:
a. | hot spots. | b. | trenches. | c. | ridges. | d. | faults. |
|
|
|
30.
|
Mountain ranges are most often formed at ____ boundaries.
a. | transform | b. | convergent | c. | divergent | d. | subduction |
|
|
|
31.
|
A ____ boundary occurs where two lithospheric plates are sliding past each
other.
a. | transform | b. | convergent | c. | divergent | d. | subduction |
|
|
|
32.
|
The best way to detect transform faults is by the ____ they cause.
a. | subduction | c. | volcanic eruptions | b. | earthquakes | d. | convection |
|
|
|
33.
|
Old crust is consumed at a ____ plate boundary.
a. | convergent | b. | divergent | c. | transform | d. | lithospheric |
|
|
|
34.
|
Older lithospheric plates are cooler plates, and therefore ____ than young
plates.
a. | denser | b. | less dense | c. | larger | d. | smaller |
|
|
|
35.
|
____ are found over the rising part of a lower mantle convection cell.
a. | Convergent boundaries | c. | Transform boundaries | b. | Divergent boundaries | d. | Subduction
boundaries |
|
|
|
36.
|
 The boundary
separating the American Plate from the African Eurasion plates is: a. | convergent. | c. | transform. | b. | divergent. | d. | None of the
above |
|
|
|
37.
|
Metamorphic rocks are formed from:
a. | cooling of magma. | c. | increasing heat and pressure. | b. | cooling of
lava. | d. | compaction of
sediment. |
|
|
|
38.
|
A metamorphic rock is formed when heat and pressure change:
a. | igneous rocks. | c. | metamorphic rocks. | b. | sedimentary rocks. | d. | All of the
above |
|
|
|
39.
|
When limestone is squeezed in a convergent plate boundary it forms:
a. | marble. | b. | granite. | c. | basalt. | d. | gneiss. |
|
Completion
Complete each
statement.
|
|
|
Select the correct term to complete each sentence. There are extra terms in
the list.| divergent | convergent | subduction | | conduction | convection | continental
drift | | mid-ocean ridges | Pangaea | continental | | ocean trench | oceanic | divergent | | | |
|
|
|
40.
|
Alfred Wegener was the German scientist who formed the theory of
______________________________.
|
|
|
41.
|
The ancient supercontinent that existed about 250 million years ago is called
____________________.
|
|
|
42.
|
____________________ cells in the lower mantle drive the lithospheric plates on
the surface.
|
|
|
43.
|
The sinking of one lithospheric plate under another is known as
____________________.
|
|
|
44.
|
____________________ plates are thin, dense and composed of basalt.
|
|
|
45.
|
______________________________ are long chains of undersea mountain
ranges.
|
|
|
46.
|
____________________ boundaries are located where two plates are colliding into
each other.
|
|
|
47.
|
The valley that forms on the ocean floor where ocean plates collide is known as
a ____________________.
|