Plate tectonics is the theory that sections of the earth’s crust _______________.

have moved toward & away from each other to form continents

Which of the following is true about subduction?

Subduction is when one plate descends beneath another

Plate tectonics refers to the theory that ____________________.

Earth's surface is made of large plates that move over time

Which one of the following statements is TRUE?

Old crust is destroyed and new crust is formed over time

The Himalayan mountains, which are along the northern border of India, were formed by ________.

the collision of two lithospheric plates

Continental drift is the idea that _________________________.

continents were once joined together to form Pangea

Which of the following is NOT true about a theory?

It is an idea with little evidential support

Which of the following is NOT true about earth’s layers?

Earth cools toward the center of the earth

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Plate Tectonics Review

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Plate Tectonics Unit Test - 7th grade science, AZ

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Questions 15

Answers

1
Which of the following is most likely to occur at a transform boundary?
volcanoes
earthquakes
all of the above
mountain formation
2
Plate tectonics is the theory that sections of the earth’s crust _______________.
are floating in the oceans and are called continents
have moved toward & away from each other to form continents
were hot and wrinkled, then cooled to form continents
have collapsed, forming oceans between the continents
3
Which of the following is true about subduction?
Subduction happens when two plates slide past each other
all of the above
Subduction occurs at divergent boundaries
Subduction is when one plate descends beneath another
4
Plate tectonics refers to the theory that ____________________.
Earth's surface is made of large plates that cannot move
the continents float on the oceans like plates
each of the continents on earth is also called a plate
Earth's surface is made of large plates that move over time
5
Which one of the following statements is TRUE?
Old crust falls into the oceans and is destroyed over time
Old crust is destroyed and new crust is formed over time
New crust is always forming on the top of large mountains
The earth’s crust moves around but is never destroyed
6
Scientific evidence suggests that the earth is ________________ of years old
millions
thousands
billions
hundreds
7
The Himalayan mountains, which are along the northern border of India, were formed by ________.
the buildup of soil and rocks over millions of years
two lithospheric plates sliding past each other
numerous eruptions of nearby volcanoes
the collision of two lithospheric plates
8
The distance from the earth’s surface to the center of the earth is __________.
5200 km
6400km
2000 km
100 km
9
New lithosphere is mostly created at what type of plate boundary?
convergent
divergent
transform
all of the above
10
Continental drift is the idea that _________________________.
objects that fall into the ocean drift between continents
continents were once joined together to form Pangea
the continents are the only solid surface on the earth
ocean waves push the continents of the surface of the earth
11
Which of the following is NOT true about a theory?
It is an idea with little evidential support
It is a thoughtful, systematic explanation to an observation
It can be used to predict future observations
It can change with new evidence
12
Which of the following is NOT true about earth’s layers?
Earth cools toward the center of the earth
Earth consists of both solid and liquid layers
Earth’s core radiates heat to circulate convection currents
The lithosphere is in the top 100km in the earth’s layers
13
Which of the following is true about earthquakes?
Lithospheric plates move, releasing seismic wave energy
Magnitude of earthquakes is quantified using a Richter scale
Earthquakes can be measured with seismographs
all of the above
14
The word “lithosphere” is used to refer to which layers of the earth?
the upper mantle and the core
the crust and the core
the crust and the upper mantle
the crust only
15
Which of the following statements provides evidence for plate tectonics?
The same kind of fossils are found in S. America and Africa
all of the above.
Same kind of rock layers are found in N. America & Europe.
Earth’s continents move at a rate of centimeters per year

Plate Tectonics Review Flashcards | StudBud