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WorksheetsPlate Tectonics
Total questions: 20
Worksheet time: 19mins
Most geologists think that the movement of Earth’s plates is caused by _______
convection currents
continental drift.
subduction.
conduction.
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.
What occurs because of convection currents?
tectonic plates move
pressure in the crust increases
pressure in the crust decreases
The place where two plates come together is known as a _______
transform boundary.
divergent boundary.
convergent boundary.
rift valley.
The Ring of Fire
is on the Pacific Plate
Is where a lot of volcanoes and earthquakes are
Both answers are correct
Below is a picture of sea-floor spreading. How are the ocean crusts moving?
Converging
Diverging
Sliding
No movement
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 slide 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.
A seismograph measures
earthquake waves
volcanic eruptions
height of mountains
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.
During Sea Floor Spreading the molten material
makes a deep ocean trench
is on the continent
happens at mid ocean ridges
