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Unit 2, Assessment 1 Plate Tectonics Flashcards | StudBud
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Unit 2, Assessment 1 Plate Tectonics
Unit 2, Assessment 1 Plate Tectonics
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6th Grade Science Earth's Structure, Plate Tectonics
Flashcards
18 cards
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Practice quiz
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Questions
18
Answers
1
What is formed when two pieces of continental crust collide at a convergent boundary?
A cave
A mountain range
A trench
Another boundary
2
What was Wegener's hypothesis of continental drift?
Continents were once joined together in a single landmass.
No movement of Earth
Earth's surface is made of made of 7 continents.
Climate change
3
Why is old ocean crust more dense than new ocean crust?
It's just not a smart material.
Older floor is cooler.
Density comes with age.
It's really hot.
4
Which is NOT a characteristic of a divergent boundary?
plates pull apart
most occur along mid-ocean ridges
high mountain ranges form
form a rift valley
5
What is the process in which the ocean floor sinks back into the mantle?
conduction
subduction
abduction
sinking floor
6
What feature of the ocean floor develops in the region labeled A ?
Ocean shelf
mid-ocean ridge
land ridge
An ocean trench
7
What is it called where two plates slip past each other in opposite directions?
Boundaries
Divergent boundary
Transform boundary
Convergent boundary
8
Which is NOT a characteristic of a transform boundary?
crust is neither created or destroyed
two plates slide past each other in opposite directions
two plates slide in the same direction
earthquakes can occur along these boundaries
9
What is the place where two plates come together?
Mid-ocean ridge
A Fault
Transform boundary
Convergent boundary
10
Which of the following statements best describes the process of plate tectonics shown?
occurs quickly at several locations in the oceanic crust
occurs very slowly along several long cracks in ocean crust
occurs very slowly at only one location in the oceanic crust
occurs very quick at only one location in the oceanic crust
11
Where in the image would you find the newly developed oceanic crust?
closer to the deep-ocean trench
washing up toward the continental crust, near letter B
Closest to the mid-ocean ridge, near letter A
all along the entire ocean floor
12
During sea-floor spreading molten material rises from the mantle and erupts from...?
Along mountain ranges
Deep Canyons
Along mid-ocean ridges
Through the ocean's floor
13
Which is NOT a characteristic of a convergent boundary?
can also occur between continental crust and oceanic crust
a boundary where two plates collide
forms large canyons or trenches
forms high mountain ranges
14
Where does a rift valley form?
The sea floor
Transform boundary
Divergent boundary?
Convergent boundary
15
What is one piece of evidence that makes scientists believe that the continents moved?
An experiment was conducted.
Same fossils found on continents separated by oceans.
Maps show movement.
People tell us that the continents move.
16
Image shows 2 types of movement, what feature of the ocean floor develops in region labeled B ?
Deep-ocean trench
Continental shelf
Abysaal plain
Mid-ocean ridge
17
What is Pangea?
A fossil.
The name of a famous scientist.
A special salad.
The super-continent that existed millions of years ago.
18
What force causes the movement of Earth's plates?
pressure
cooling
convection currents in the mantle
the magnetic field
