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WorksheetsPlate Tectonics
Total questions: 139
Worksheet time: 4hrs 30mins
The movement of the tectonic plates is caused by
the rotation of the Earth.
convection currents in the Asthenosphere
the gravity of the iron-nickel core.
the Moho discontinuity.
In some areas of the world, like California and Japan, earthquakes are a common occurrence. How can this best be explained?
The strong ocean currents are undermining both areas causing earthquakes.
Both areas are located near the edge of the Pacific Ocean, the unstable sand causes earthquakes.
Both areas are subjected to strong ocean wind and waves that causes earthquakes.
Both areas are on the boundary of active plates, the motion of the plates causes earthquakes.
Observe this diagram of a plate boundary. One statement BEST describes what is happening. It is that
the oceanic crust is melting.
the denser ceanic crust is subducting under the less dense oceanic crust
volcanic islands are forming.
the tectonic plates are moving away from each other.
The map in the picture shows tectonic plate boundaries. This map would be useful in predicting the location of future
droughts
hurricanes
earthquakes
tornadoes
Earthquake epicenters (center of where the earthquakes started) were mapped for a 35 year period in the diagram above. The black dots indicate these epicenters. The black dots appear along what feature on Earth?
hot spots
plate boundaries
rift zones
sea floor spreading
Where are earthquakes MOST LIKELY to occur?
close to the equator
close to the center of tectonic plates
at divergent or convergent plate boundaries
at transform plate boundaries
The 2004 Indian Ocean tsunami was caused by a shift in two plates that pushed one section of the sea floor under another section of the sea floor by 5 meters. What type of boundary is this?
divergent
convergent
transform
metamorphic
___________ currents in the Earth's asthenosphere cause plate to shift at their boundaries. This movement also causes earthquakes and volcanic activity.
conduction
convection
radiation
ocean
What is the source of energy that drives plate movement?
the subducton of the sea floor
the different densities of the oceanic and crustal plates
convection currents in the asthenosphere
the friction force between the plates that move past each other
Where would sea floor spreading most likely occur?
At convergent boundaries (oceanic vs. oceanic)
At convergent boundaries (oceanic vs. continental)
At divergent plate boundaries (oceanic vs. oceanic)
At transform plate boundaries
The Marianas Trench, where the Pacific Plate descends under the leading edge of the Eurasian Plate, is the deepest sea floor in the world. These ocean trenches form when two oceanic plates collide
and the older, less dense of the two plates rides over the edge of the older plate.
when convection currents in the mantle force the older plate downward.
and the younger, denser of the two plates, rides over the edge of the older plate.
and the plates are approximately the same age and density.
What is the correct order (starting from the surface) of Earth’s layers?
crust, outer core, inner core, mantle
mantle, outer core, inner core, crust
crust, mantle, outer core, inner core
outer core, inner core, crust, mantle
In sea-floor spreading, molten material rises from the mantle and erupts
along the edges of all the continents.
along mid-ocean ridges.
in deep-ocean trenches.
at the north and south poles.
The process by which the ocean floor sinks beneath a deep-ocean trench and back into the mantle is known as _______
convection.
continental drift.
subduction.
conduction.
Most geologists think that the movement of Earth’s plates is caused by _______
convection.
continental drift.
subduction.
conduction.
The geological theory of _______ states that pieces of Earth’s lithosphere are in constant, slow motion.
subduction
plate tectonics
deep-ocean trenches
sea-floor spreading
A place where two plates slip past each other, moving in opposite directions, is known as a _______
transform boundary
divergent boundary.
convergent boundary.
rift valley.
Scientists think that convection currents flow in Earth’s
continents.
mantle.
lithosphere.
inner core.
The place where two plates come together is known as a _______
transform boundary.
divergent boundary.
convergent boundary.
rift valley.
Below is a picture of sea-floor spreading. How are the ocean crusts moving?
Converging
Diverging
Sliding
No movement
The San Andreas Fault in California is known as an active earthquake area. What type of
boundary is it?
Converging
Diverging
Transform
Sea Floor Spreading
Earth's plates meet at ____________.
plate tectonics
plate boundaries
continental drift
oceans
Breaks in the crust called __________ form where plates meet.
mountains
rift valleys
faults
trenches
A __________ forms where plates diverge on land.
rift valley
mid-ocean ridge
mountain
trench
Plates slide apart along _____________ boundaries.
convergent
divergent
transform
universal
Which theory describes the motion of the force driving Earth's Plates?
continental drift
plate tectonics
first law of motion
third law of motion
What is the motion of Earth's plates like?
fast and in stages
slow and in stages
fast and constant
slow and constant
The San Andreas fault is an example of which type of boundary?
transform
divergent
convergent
universal
divergent boundary
convergent boundary
transform boundary
divergent boundary
convergent boundary
transform boundary
divergent boundary
convergent boundary
transform boundary
This type of boundary does NOT involve magma.
divergent
convergent
transform
New crust is formed at this type of boundary
divergent
convergent
transform
This type of boundary creates folded mountains.
transform
divergent
continental-continental convergent
continental-oceanic convergent
This feature can be found along a divergent boundary
mid-ocean ridge
folded mountains
deep sea trench
At which of these boundaries would you find a deep sea trench?
transform
divergent
oceanic-oceanic convergent
Volcanoes are formed when which type of crust subducts under another plate?
continental
oceanic
magma
Which feature is formed when two oceanic plates collide?
mid-ocean ridge
volcanic island arc
folded mountains
Magma that erupts out of volcanoes comes from.....
melted transform crust
melted oceanic crust
melted continental crust
When oceanic and continental crust collide what feature would form?
volcanic island arc
folded mountain
volcanoes on the continent
Subduction means.....
one plate goes under another plate
two plates slide past each other
two plate collide and form folded mountains
Sea-floor spreading explains how.....
new crust is created at a divergent boundary
volcanoes are formed on continents
deep sea trenches are formed
divergent plates move
away fro each other
towards each other
slide past each other
convergent plates move
towards each other
away from each other
past each other
At a transform boundary the plates.....
collide
diverge
slide past each other
This area is called the....
Arc of Volcanoes
Ring of Fire
Horseshoe of Magma
What geologic event would most likely be found at a transform boundary?
Volcano
Mountain
Earthquake
Mid-Ocean Ridge
What landform would you most likely find at a divergent boundary between two pieces of oceanic crust?
Rift Valley
Mountain
Mid-Ocean Ridge
Volcano
What landform would you most likely find at a divergent boundary between two pieces of continental crust?
Mid-Ocean Ridge
Rift Valley
Mountain
Volcano
What landform would you most likely find at a convergent boundary between two pieces of continental crust?
Mid-Ocean Ridge
Oceanic Trench
Mountain
Volcano
What landform would you most likely find at a convergent boundary between two pieces of oceanic crust?
Rift Valley
Mid-Ocean Ridge
Mountain
Ocean Trench
The geological theory that states that pieces of Earth's lithosphere are in constant, slow motion is the theory of
subduction
plate tectonics
evolution
seafloor spreading
The type of plate boundary where two plates come together is a .....
Convergent Boundary
Divergent Boundary
Transform Boundary
Plate Boundary
A convergent boundary occurs when plates experience ________ force
Compression
Tension
Sheer
Subducting
Islands can from from magma which is pushed up at a __________ plate boundary
Divergent
Convergent
Transform
Oceanic Trenches are formed by either _______ or _______ plate boundaries
Convergent Oceanic / Continental
Convergent Continental / Continental
Convergent Oceanic / Oceanic
Divergent
Ocean Ridges are formed by _______ plate boundaries
Convergent Oceanic / Continental
Convergent Continental / Continental
Convergent Oceanic / Oceanic
Divergent
Ocean Ridges are formed by _______ plate boundaries
Convergent Oceanic / Continental
Convergent Continental / Continental
Convergent Oceanic / Oceanic
Divergent
Non-volcanic earthquakes are caused by _______ forces
Compression
Sheer
Tension
Divergent
Oceanic crust is largely made of
Dense basalt rock
Light basalt rock
Dense granite rock
Light granite rock
Continental crust is largely made of
Dense basalt rock
Light basalt rock
Dense granite rock
Light granite rock
Why does oceanic crust subduct under continental crust?
Oceanic crust is thin
Oceanic crust is dense
Continental crust is thin
Continental crust is dense
What Tectonic Plate is pictured?
Eurasian
Pacific
Antarctic
African
Which Oceanic Tectonic Plate is yellow?
North American
African
Pacific
Australian
Which Tectonic Plate is at #1
Pacific
Australian
Africa
North America
What Lithosphere Plate is circled?
North America
African
Australian
Antarctic
What Tectonic Plate is #8?
African
Eurasian
Nazca
Antarctic
Which Lithosphere Plate is circled?
North American
Pacific
Nazca
South American
What Tectonic Plate is # 11
Australian
American
African
Antarctic
Which Lithosphere Plate is circled?
Eurasian
North American
African
Antarctic
What is the Lithosphere Plate at #3?
South American
Nazca
Eurasian
Australian
Which Lithosphere Plate is circled?
South American
North American
Eurasian
Australian
What is Tectonic Plate #4?
South American
North American
Australian
Antarctic
Which Lithosphere plate is #7?
Australian
Antarctic
African
American
Which Lithosphere Plate is #13?
Antarctic
Eurasian
Pacific
Nazca
