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