NEW
Font size
Worksheetsscience
Total questions: 20
Worksheet time: 10mins
Most geologists think that the movement of Earth’s plates is caused by
conduction.
earthquakes
convection currents in the mantle.
Earth’s magnetic field.
According to the theory of plate tectonics, which layer of the earth is broken into separate sections called plates?
continental crust
oceanic crust
lithosphere
asthenosphere
In sea-floor spreading, molten material rises from the mantle and erupts
along the edges of all the continents
at the north and south poles
along mid-ocean ridges
In deep ocean trenches
A collision between two pieces of continental crust at a converging boundary produces a
mountain range
mid-ocean ridge
Rift Valley
deep ocean trench
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
The place where two plates come together is known as a
convergent boundary
transform boundary
divergent boundary
Rift Valley
Where does a rift valley form?
convergent plate boundary
divergent plate boundary
transform plate boundary
deep ocean trench
a place where two plates move away from each other is known as a
convergent boundary
transform boundary
continental drift
divergent boundary
Which of the following statements about mid-ocean ridges is true?
mid-ocean ridges are always near the water's surface
mid-ocean ridges can be longer than the Rockies and Andres Mountains
Mid ocean ridges were first discovered using GPS
Mid-ocean ridges have a flat plateau at their highest point
Old oceanic crust is more dense than new oceanic crust because it is
hot
cool
moving toward a deep-ocean trench
closer to the mid-ocean ridge
In which layer of Earth are the convection currents that directly result in tectonic plate movement?
crust
mantle
outer core
inner core
What areas are considered to be at the greatest risk for earthquakes?
at plate boundaries
at a mid-ocean ridge
at the edges of continents
in the middle of a continental plate
A place where two plates slip past each other moving in opposite directions is know as a(n)
convergent boundary
divergent boundary
earthquake
transform boundary
The geological explanation as to why pieces of Earth's lithosphere are in constant, slow motion is called the
theory of plate tectonics
law of superposition
law of gravity
Big Bang theory
At a convergent boundary where Earth's plates collide, what is least likely to occur?
volcanoes
deep ocean trench
seafloor spreading
mountain building
In which location would you most likely find underwater volcanoes?
far from plate boundaries
along transform boundaries
where two continental plates collide
along mid ocean ridges
What landforms on earth's surface are a direct result of plate tectonics?
deltas and streams
deforestation of land
sequencing of rocks
mountains, earthquakes, and volcanoes
What feature occurs at point Y on the diagram?
deep ocean trench
mid-ocean ridge
underwater canyon
volcanoe
What feature occurs at point X on the diagram?
mid ocean ridge
deep ocean trench
underwater canyon
abyss
What type of fault occurs at a transform boundary such as the San Andreas fault?
normal
reverse
strike-slip
stress
