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SOL Plate Tectonics Review Flashcards | StudBud
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SOL Plate Tectonics Review
SOL Plate Tectonics Review
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Review plate tectonics Earth science
Flashcards
25 cards
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Practice quiz
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Questions
25
Answers
1
What is the rising of warm magma and the sinking of cooler magma inside the mantle known as?
conduction
convection currents
a convergent boundary
plate tectonics
2
What is a difference between old continental crust and new oceanic crust?
Continental crust is older, thinner and denser
newer crust has magnetic striping caused
Oceanic crust is newer, thinner and more dense
older crust is found under the continents
3
What happens when two oceanic plates collide?
they squeeze the crust upward into a mountain range
all options are possible
one bends under the other and causes a trench
the oceanic plate slides beneath the continental plate
4
According to the plate tectonic theory, what drives the movement of the plates?
converging and diverging boundaries
convection currents in the mantle
the Earth's magnetic field
sea-floor spreading
5
What happens when a continental plate and an oceanic plate collide?
they squeeze the crust upward forming a mountain
the oceanic plate slides under the continental plate
Each of these could happen
one slides under the other forming a trench
6
What do you call the process where new material is continually added to the ocean floor?
sea-floor spreading
deep-ocean trench
mid-ocean ridge
mountain range
7
The pattern of magnetic stripes on rocks is evidence for _______________.
convection currents
continental drift
Pangea (a supercontinent)
sea-floor spreading
8
Plates that come together are called a _______ boundary.
transform
convergent
divergent
subduction
9
What do you call a long chain of mountains that rise from the ocean floor?
mountain range
deep-ocean trench
sea-floor spreading
mid-ocean ridge
10
Why did most geologists of Wegener's time reject his hypothesis?
He couldn't explain the fossil records.
He had no evidence to support his hypothesis.
He couldn't explain what caused the continents to drift.
They did not like Wegener.
11
What happens when two continental plates collide?
the oceanic plate slides beneath the continental plate
the crust is squeezed upward into a mountain
each of these could happen
one slides under the other and forms a trench
12
When the ocean floor sinks below continental plate forming a deep-ocean trench into the mantle?
divergent
convergent
subduction
transform
13
What is a rift valley?
A deep valley on the continental crust.
A mountain chain that rises up from the ocean floor.
A deep underwater canyon.
A mountain range on the continental crust.
14
What device used sound waves to help map the mid-ocean ridges in the mid- 1900s?
sonar
ridgeometer
laser
seismograph
15
Plates move apart from each other at a _________ boundary.
divergent
transform
convergent
subduction
16
Sea-floor spreading happens when molten material rises __________________.
at the boundary of each plate
in the deep-ocean trenches
from volcanoes on the continental crust
along mid-ocean ridges
17
Plates slip past each other along a _______ boundary.
convergent
transform
subduction
divergent
18
What was Alfred Wegener's hypothesis about the continents.
Mountain ranges formed when continental plates collided.
The continents were joined together and then drifted apart
There have always been 7 distinct continents.
The continents rest on plates that move slowly over time.
19
When two pieces of continental crust collide at a converging boundary, a ______ is produced.
convergent boundary
mid-ocean ridge
mountain range
rift valley
20
Theory that the continents slowly moved over the Earth's surface in the past?
divergent boundaries
supercontinental drift theory
plate tectonics
continental drift
21
What do scientists believe causes the movement of the Earth's plates?
seismic action
Earth's magnetic field
convection currents in the mantle
sea-floor spreading
22
What is energy transfer that occurs in the oceans, atmosphere, and Earth's interior?
Pressure
Convection
Density
Gravity
23
Oceanic crust near the mid-ocean ridge...
more wet than crust further from the ridge.
contains more fossils than crust further from the ridge.
is not different from crust further from the ridge.
younger than crust further from the ridge.
24
Alfred Wegener supported his continental drift theory using evidence from...
landforms, fossils, and sea-floor spreading
Marie Tharp's mapping the ocean floor using sonar
fossil records and ocean floor mapping
landforms, fossils, and climate
25
What did Wegener name the supercontinent he described?
Pangea
Pangrava
Panini
Palermo
