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WorksheetsPlate Tectonics Final
Total questions: 20
Worksheet time: 10mins
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
crust, outer core, mantle, inner core
Earth's inner core is...
a dense ball of solid metal
a layer of molten metal
a layer of hot rock
a layer of rock that forms the Earth's outer skin
Geologists obtain INDIRECT evidence about Earth's interior by...
measuring pressure differences at Earth's surface
estimating temperature inside the Earth
directly looking under the many layers
recording and studying seismic waves
Heat transfer within a fluid takes place by...
radiation
conduction
convection currents
density
Earth's magnetic field results from movements in the ...
mantle
crust
inner core
outer core
According to Wegener's hypothesis of continental drift...
Earth's surface is made up of seven major land masses called continents
the continents do not move
Earth is slowly cooling and shrinking
the continents were once joined in a single land mass
What is Pangaea?
the name of a German scientist
the name of the supercontinent that existed millions of years ago
another name for continental drift
the name of an ancient fossil found both in South America and Africa
Which type of evidence was NOT used by Wegener to support his theory of continental drift?
evidence from landforms such as rocks and mountain ranges
evidence from fossils and plants
evidence from human remains
evidence of climate change
Most geologists rejected Wegener's idea of continental drift because...
they were afraid of new ideas
Wegener was interested in what Earth was like millions of years ago, but not today
Wegener used several different 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
What did scientists notice when they observed the mid-ocean ridge?
a convergent boundary
pillow-shaped rocks formed by the rapid hardening of molten material
the movement of Earth's plates
convection currents
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
Movement of the Earth's plates is caused by....
conduction
earthquakes
Earth's magnetic field
convection currents in the mantle
A collision between two pieces of continental crust at a converging boundary produces a...
deep-ocean trench
mid-ocean ridge
rift valley
mountain range
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
The place where two plates come together is known as a...
transform boundary
divergent boundary
convergent boundary
rift valley
At which point will the oldest rock be found? Explain.
Older rock will be found at Y since it is closer to the ridge.
Older rock will be found at X since it is deeper there than at the ridge.
Older rock will be found at Y since it is hotter there than farther away.
Older rock will be found at X since sea-floor is pushed away from the ridge when new crust is formed.
The process of _______ continually adds new crust to the ocean floor along both sides of the mid-ocean ridge.
convection currents
sea-floor spreading
rift valley
subduction
