WorksheetsPlate Tectonic Chapter Review
Total questions: 51
Worksheet time: 44mins
Check all the correct answers that were used as evidence to support CONTINENTAL DRIFT THEORY.
convection currents
similar animal and plant fossils on distant continents
earthquakes
finding warm weather animals and plant fossils on now cold continents
similar rock structure on different continents (Appalachian mountains)
The youngest rocks on the ocean floor are located ____.
near continents
at mid-ocean ridges
far from mid-ocean ridges
near Asia
Seafloor spreading occurs because ____.
new material is being added to the asthenosphere
earthquakes break apart the ocean floor
sediments accumulate at the area of spreading
molten material beneath Earth's crust rises to the surface
A vast, underwater mountain chain is called a(n) _________.
mid-ocean ridge
oceanic crust
deep-sea trench
ocean floor sediment
In sea-floor spreading, molten material rises from the mantle and erupts
in deep-ocean trenches
along the edges of all the continents
along mid-ocean ridges
at the north and south plate
The process of ___________ continually adds new crust to the ocean floor along both sides of the mid-ocean ridge.
plate tectonics
seafloor spreading
continental drift
convection
Select the 3 kinds of evidence were used to prove that the seafloor spreading?
rock formations (pillow),
magnetic seafloor stripes
age of rocks
continents fit together
What boundary does this picture show?
Divergent
Transform
Convergent
Select the landforms that CAN form at a convergent boundary. (any type of convergent boundary)
mountains
volcanoes
deep ocean trenches
mid ocean ridges
The lithosphere is broken up into ____ and moves around.
dishes
plates
utensils
bowls
What is the theory that states that Earth's crust and upper mantle are broken into sections, which move around on a special layer of the mantle?
seafloor spreading
continental drift
plate tectonics
pangaea
The movement of the tectonic plates is caused by
the rotation of the Earth.
convection currents in the mantle
the gravity of the iron-nickel core.
the Moho discontinuity.
Observe this diagram of a plate boundary. One statement BEST describes what is happening. It is that
the oceanic crust is melting.
the denser oceanic crust is subducting under the less dense oceanic crust
volcanic islands are forming.
the tectonic plates are moving away from each other.
___________ in the Earth's mantle cause plate to shift at their boundaries.
conduction
convection currents
radiation
ocean
What is the process of convection currents?
cooling and creating rocks
heating, rising, cooling, sinking
heating and boiling
heating, rising, cooling, becoming stone
Convection currents determine...
nada (nothing)
where the plates move
how hot the mantle is
the phases of the moon
Two plates come together or collide at what boundary?
Convergent
Divergent
Transform
What type of crust must be involved for a subduction zone to occur?
oceanic crust
continental crust
none of the above
both
What is it called when the denser crust goes underneath the less dense crust and back into the mantle?
subduction
subtraction
driving zone
none of the above
At which boundary is crust DESTROYED (when melting in the mantle!)?
Continent- continent Convergent
Transform boundaries
Subduction zones
All convergent boundaries
Two plates come together or collide at what boundary?
Convergent
Divergent
Transform
Two plates spread or move apart at what boundary?
Convergent
Divergent
Transform
Two plates slide past each other at what boundary?
Covergent
Divergent
Transform
What geologic feature/event would you most likely to find at a divergent boundary between two pieces of continental crust? (on land)
Check all the possible features of a divergent boundary
rift valley
seafloor spreading
mid-ocean ridge
new crust is created
What does letter A represent in the convection current cycle?
Heating
Rising
Cooling
Sinking
What does letter D represent in the convection current cycle?
Heating
Rising
Cooling
Sinking
Choose the correct label for number 12.
subduction zone
newer seafloor
volcanic activity
magma rising
Choose the correct label for number 8.
seafloor spreading
new seafloor
trench
magma rising
Choose the correct label for number 7.
mid-ocean ridge
(where seafloor spreading occurs)
convection currents
older seafloor
trench
Choose the correct label for number 11.
trench
Convection Currents
asthenosphere
lithosphere
As one moves away from a hot spot, the crust will get :
younger
older
the will be no change in age
Why does oceanic crust always subduct?
Its more dense than continental crust
Its less dense than continental crust
Crust at a Convergent Plate Boundary is....
Created
Destroyed
Check all the type of convergent boundaries
2 oceanic
2 continental
1 continental 1 oceanic
How did pangaea drift apart?
earthquakes
seafloor spreading
Continental drift
erosion
