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CFMS: 8th Grade Unit 3 Plate Tectonics Flashcards | StudBud
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CFMS: 8th Grade Unit 3 Plate Tectonics
CFMS: 8th Grade Unit 3 Plate Tectonics
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1
Sea floor spreading happens at
transform fault boundaries
divergent boundaries
normal faults
convergent boundaries
2
A shift in which of the following layers causes earthquakes?
Outer core
Crust
Inner core
Mesosphere
3
Which type of plate is more dense?
neither
oceanic
continental
4
The process where heated material is less dense/rises while cooler material is denser/sinks.
conduction
convection
raitation
insulation
5
Compression results in which type of fault?
Normal fault
Strike-Slip fault
Reverse fault
No fault
6
Where does molten material rise from the mantle during sea floor spreading?
mid ocean ridges
deep ocean trenches
faults
earthquakes
7
How can you explain ocean fossils at the top of a mountain?
Slip faults
Tectonic letdown
Subduction
Uplifting
8
Non-volcanic mountains are formed when two continental plates
Stay Still
Subduct
Diverge
Converge
9
Which events occur at plate boundaries?
all of these
earthquakes
mountain building
volcanoes
10
The concept of sea floor spread is supported by a documentation of the change in the Earth's
gravity
magnetic field
asthenosphere
core
11
A rift valley is caused by two continental plates
standing still
diverging
slipping
converging
12
What do scientist believe causes plates to move?
a big wheel
magic
gravity
convection currents in the mantle
13
Why was Alfred Wegener's theory originally rejected by scientific peers?
He couldn't explain how the continents moved.
They already knew the continents could not more.
His theory didn't make any sense.
He had no evidence.
14
Where are there more earthquakes in San Francisco then in Chagrin Falls?
San Francisco is close to the ocean
plate boundaries are in San Francisco
San Francisco has a higher altituted
More people live in San Francisco
15
A transform boundary is where the plates are
sliding past each other
colliding together
none of these
moving apart
16
A divergent boundary is where the plates are
sliding past each other
none of these
moving apart
colliding together
17
Why is the inner core sold and not liquid?
iron is a solid
it's not a solid
magic
crazy amount of pressure
18
Which layer of the Earth consists of the crust and upper mantle?
lithosphere
core
asthenosphere
mesospher
19
The area where an oceanic plate meets a continental plate is
convection currents
subduction zones
strike-slip faults
divergent boundaries
20
Divergent means
move together
move apart
the title of a book
move along
21
Which area of the Earth do tectonic plates "float on"?
crust
lithosphere
asthenosphere
core
22
A convergent boundary is where the plates are
sliding past each other
colliding together
moving apart
none of these
23
Which wall is the hanging wall?
A
B
24
Where does subduction occur in this image?
canyons
mid ocean ridges
deep ocean trenches
mountains
25
Earthquakes and volcanoes happen most often
in the Earth's core
along plate boundaries
at Mr. Richmond's house
in the middle of plates
26
What is the correct order of the layers of the Earth starting from where we are on the surface?
crust, mantle, outer core, inner core
outer core, mantle, inner core , crust
inner core, outer core, crust, mantle
crust, outer core, inner core, mantle
27
Which type of evidence did Wegener NOT use to support his theory of Continental Drift?
Fossil evidence
Landform evidence
Climate evidence
Water evidence
28
Mountain ranges form at which type of boundary?
convergent
irregular
divergent
transform
29
Since oceanic crust is denser than continental crust, which statement is true?
Continental crust becomes thinner than oceanic crust
Oceanic crust rides above continental crust
Continental crust sinks below Oceanic crust
Oceanic crust sinks below continental crust
30
The plates along a transform fault
move apart
move side by side
don't move
move together
31
Which layer of the Earth is the hottest?
mantle
inner core
crust
outer core
32
Who created the theory of Continental Drift?
Albert Einstein
Harry Hess
Isaac Newton
Alfred Wegner
33
When a hanging wall moves up relative to the footwall.
Normal
Fault block
Strike-slip
Reverse
34
How do scientists know about the layers of the Earth?
earthquake wave data
drilling
hypothesis
volcanoes
35
Plate tectonics can also be the direct cause of forming
mountains
oceans
lakes
rivers
36
When a hanging wall moves down relative to the footwall.
Fault block
Strike-slip
Normal
Reverse
37
All the continents were once a "super-continent" called....
Laurasia
Gondwana
Pangea
Eurasia
38
What data led scientists to determine what comprises the layers of the Earth?
seismic waves
depth of Earth's oceans
electromagnetic radiation
magnetic reversals
39
Evidence of plate movement can be found at
rift valleys
both rift valleys and plate boundaries
plate center
plate boundaries
40
What landform is found where two ocean plates diverge?
Volcanos
Mountains
Rift Valley
Mid-Ocean Ridge
41
Plate tectonics, or the movement of pieces of Earth's crust, is thought to be caused by
convection currents in the Earth's mantle
Earthquakes
Hot Spots
volcanoes
42
Which layer of the earth is solid iron?
outer core
inner core
crust
matle
43
The inner core is mostly comprised of
oxygen
hydrogen
iron
rock
44
The age of oceanic crust compared to continental crust is
younger
not as old as Mr. Wessel
the same age
older
45
The types of plate collisions are determined by
The density of the plates
The size of the boundary
The magnetic orientation of the rock
The size of the plates
46
The lithosphere moves over the
asthenosphere
mesosphere
inner core
outer core
47
Convergent means
move along
move together
move apart
the title of a book
48
What happens to a plate at a subduction zone?
it melts
it dissapears
it gets cold
it hardens
49
What is it called when one plate sinks underneath another?
strike slip
subduction
boundary
reduction
50
Which wall is the footwall?
A
B
51
Tension results in which type of fault?
Strike-Slip fault
Normal fault
Reverse fault
No fault
52
Who was the scientist that developed the theory of Continental Drift?
Harry Hess
Jane Goodall
Alfred Wegener
Albert Einstine
53
The continents are moving away from each other as magma rises from mid-ocean ridges. This is
changing sea floor
sea floor spreading
underwater volcanos
sea floor rising
54
Why do tectonic plates move?
convection currents in the mantle
ocean currents
conduction currents in the mantle
wind currents
