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WorksheetsEarth's Structure and Plate Tectonics Unit Test Review
Total questions: 35
Worksheet time: 18mins
What is the process that occurs at convergent boundaries called?
seafloor spreading
subduction
transform
ridge push
Wegener’s hypothesis of ____________ stated that Earth’s continents had once been joined as a single landmass.
continental drift
magnetic reversal
seafloor spreading
paleomagnetism
____________ are places where plates slide horizontally past each other.
Divergent boundaries
Transform boundaries
Convergent boundaries
Rift valleys
______________ is a process whereby the weight of an uplifted ocean ridge pushes an oceanic plate toward a subduction zone.
Magnetic reversal
Seafloor spreading
Slab pull
Ridge push
The transfer of thermal energy by the movement of heated matter is ______________.
continental drift
convection
paleomagnetism
subduction
Places where plates move apart are ____________.
divergent boundaries
transform boundaries
convergent boundaries
continental drift
_____________ occurs when one tectonic plate descends beneath another.
Continental drift
Magnetic reversal
Seafloor spreading
Subduction
The theory of __________ explains how new ocean crust is created at ocean ridges and destroyed in deep-sea trenches.
continental drift
seafloor spreading
paleomagnetism
plate tectonics
Tectonic plates come together at ___________.
divergent boundaries
transform boundaries
convergent boundaries
rift valleys
A long, narrow continental depression bordered by faults on each side is a ____________.
magnetic reversal
rift valley
subduction
Pangea
Study the diagram showing the range of temperature in the Earth’s layers. Which temperature most likely corresponds to the asthenosphere?
1,613°C
2,521°C
3,628°C
6,217°C
Which statement describes one of Wegener’s ideas that contributed to the theory of continental drift?
The continents drifted apart due to repeated meteor impacts.
The continents were once connected as one landmass.
The continents have moved apart very quickly due to earthquakes.
The continents are magnetically pulled toward or pushed away from one another.
Many early mapmakers though Earth's continents had moved based on __________.
plate boundary location
climatic data
fossil evidence
matching coastlines
Why was continental drift not widely accepted when it was first proposed?
Wegener couldn’t explain why or how the continents moved.
Continental landmasses were too big to move slowly over Earth’s surface.
Magnetic and sonar data proved that Wegener’s hypothesis was incorrect.
Mantle convection currents weren’t in motion at that time.
Which evidence shows that landmasses had different climates millions of years ago and supports the theory of continental drift?
coal fields in several continents
Lystrosaurus fossils in Antarctica
tropical plant fossils on Arctic islands
folded mountains in Africa and South America
Which statement best describes the theory of plate tectonics?
Plates sometimes move closer to one another.
Sections of Earth that shift are part of Earth’s asthenosphere.
Sections of Earth’s continents are in slow, constant movement.
Parts of the ocean floor move as they are carried by rift valleys.
From which location does seafloor spreading originate?
mid-ocean ridges
edges of continents
deep-ocean trenches
underwater volcanoes
Which statement explains what happens to older crust during seafloor spreading?
It is destroyed at coastlines.
It moves under continents.
It is destroyed at a mid-ocean ridge.
It moves away from a mid-ocean ridge.
Features found at divergent boundaries include __________.
ocean ridges
crumpled mountains
deep-sea trenches
island arc volcanoes
Subduction results in the formation of ___________.
a deep-sea trench
a rift valley
a magnetic reversal
new continental crust
Continental-continental plate collisions produce _________.
island arcs
deep-sea trenches
rift valleys
very tall mountain ranges
Crust is neither destroyed nor formed along which of the following boundaries?
convergent
transform
divergent
magnetic
The driving forces of tectonic plates are related to convection currents in Earth’s ___________.
crust
inner core
mantle
outer core
Which feature of Earth is created at mid-ocean ridges?
new island chain
new volcanoes
new continents
new ocean floor
Which statement describes one event that happens at deep-ocean trenches?
Crust is formed.
Mountains are formed.
Seafloor spreading occurs.
Denser plates slide under lighter plates.
Study the image of Earth’s layers. Which statement correctly compares the thicknesses of Earth’s layers?
Earth’s mantle is thinner than its oceanic crust.
Earth’s outer core is thicker than its mantle.
Earth’s continental crust is thicker than its lithosphere.
Earth’s lithosphere is thinner than its asthenosphere.
Which region of Earth’s crust experiences the least amount of pressure?
crust
mantle
outer core
inner core
Study the diagram showing the range of temperature in the Earth’s layers. What does the diagram show about Earth’s interior?
The outer core is the hottest region.
The mantle is hotter than the outer core.
The continental crust is the coolest region.
The inner core is cooler than the lithosphere.
Which best explains how heat plays a role in the movement of materials within Earth’s interior?
Hot material near Earth’s surface is more dense and sinks, and when it cools, it becomes less dense and rises.
Hot material near the core is more dense and rises, and when it cools, it becomes less dense and sinks.
Hot material near Earth’s surface is less dense and sinks, and when it cools, it becomes more dense and rises.
Hot material near the core is less dense and rises, and when it cools, it becomes more dense and sinks.
Many earthquakes occur near mid-ocean ridges but do not destroy or form new crust. Instead, plates slip past each other. Which kind of boundary is found at these earthquake locations?
transform boundary between two ocean plates
transform boundary between two continental plates
convergent boundary between two ocean plates
convergent boundary between two continental plates
Study the image of Earth’s interior. Which phrase explains what the arrows show?
how convection currents move in Earth’s interior
the location of heated material near Earth’s surface
where plates move as material cools in the outer core
why the densities of materials remain constant at different layers
Which statement explains the relationship between the density of a material and its movement in Earth’s interior?
Cooler materials move from Earth’s mantle to the lithosphere.
Cooler materials are highly dense, causing them to sink to the outer core.
Warmer materials sink to the mantle because their density slowly decreases.
Warmer materials have a high density, causing them to rise to Earth’s surface.
Study this image. Which statement correctly explains what is happening in the image?
A volcano is forming.
Plates are converging.
A rift valley is forming.
A transform boundary is occurring.
Study the image. Which feature is modeled in the diagram?
A convergent boundary is formed.
Two plates are forming a divergent boundary.
Continental plates are sliding past each other.
Several mid-ocean ridges are formed on Earth’s surface.
Study the image. Which phrase describes this plate boundary?
does not occur in oceans
may form rift valleys
is a type of convergent boundary
is a region where earthquakes occur
