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WorksheetsPlate Tectonics Final
Total questions: 25
Worksheet time: 13mins
Holes drilled several kilometers into Earth’s crust provide direct evidence about Earth’s interior in the form of _______.
seismic waves
rock samples
liquid iron
volcanic eruptions
Geologists obtain indirect evidence about Earth's interior by
measuring pressure differences at Earth’s surface.
estimating temperature inside earth.
directly looking under the many layers
recording and studying seismic (earthquake) waves
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
Earth's inner core is
a dense ball of solid metal
a layerof molten metal.
a layer of hot rock
a layer of rock that forms Earth's outer skin.
According to Wegener's hypothesis of continental drift,
Earth's surface is made up of seven or eight major landmasses.
the continents do not move.
Earth is slowly cooling and shrinking.
The continents were once joined together in a single landmass.
What is Pangaea?
the name of a German scientist
the name of a supercontinent that existed millions of years ago
another name for continental drift
the name of an ancient fossil
Which type of evidence was NOT used by Alfred Wegener to support his continental drift hypothesis?
evidence from landforms
evidence from fossils
evidence from human remains
evidence from climate
Most geologists rejected Alfred Wegener's idea of continental drift because
they were afraid of a new idea
Wegener was interested in what Earth was like millions of years ago
Wegener used several types of evidence to support his hypothesis
Wegener could not identify a force that could move the continents
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
How did scientists discover that rocks farther away from the mid-ocean ridge were older than those near it?
by observing eruptions of molten material on the sea floor
by mapping rocks on the sea floor using sonar
by determining the age of rock samples obtained by drilling on the sea floor.
by measuring how fast sea-floor spreading occurs.
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
conduction
earthquakes
convection currents in the mantle
Earth's magnetic field
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
A rift valley forms at a
convergent plate boundary
divergent plate boundary
transform boundary
deep ocean trench
A place where two plates slip past each other, moving in opposite directions, is known as a
convergent plate boundary
divergent boundary
transform boundary
deep ocean trench
Earth's magnetic field results from movements in the
mantle
crust
inner core
outer core
Scientists think that convection currents flow in Earth's
continents
mantle
lithosphere
inner core
A collision between two pieces of continental crust at a converging boundary produces a _______
mid-ocean ridge
deep ocean trench
rift valley
mountain range
A place where two plates move apart or divide is known as a
transform boundary
divergent boundary
convergent boundary
rift valley
Which type of plate boundary occurs at B?
Transform boundary
Divergent boundary
Convergent boundary
Rift valley
Is the rock at Y colder or hotter than the rock at X?
Colder
Hotter
Neither cold or hot
None of the above
What is happening at A?
a mountain is forming
only subduction is occurring
only a trench is being formed
subduction is occurring and a trench is being formed
At which point, X or Y will the oldest rock be found?
X
Y
Neither X or TY
Both X and Y
What feature occurs at C?
Mountain
Volcano
Mid-ocean ridge
None of the above
