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Plate Tectonics Review
Plate Tectonics Review
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Review of Plate Tectonics for 6th Grade
Flashcards
20 cards
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Practice quiz
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Host live
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Questions
20
Answers
1
Look at the picture of Earth's layers. Which of the following is a problem with this model?
Each layer should have the same thickness.
There should be only two layers.
Layer B should be thicker than layer C.
Layer A should be thicker than layer B.
2
What is the "engine" that moves the plates?
Conduction Currents
Magma
Convection Currents
Radiation
3
How are mountains formed?
Continental crust collides with continental crust.
Oceanic crust collides with continental crust.
Mountains are formed at divergent boundaries.
Oceanic crust collides with more oceanic crust.
4
How many oceans are there today?
Two
Five
Four
Three
5
Shown is a picture of sea-floor spreading. How are the ocean crusts moving?
Diverging
Converging
Sliding
No Movement
6
The theory of plate tectonics states what?
The tectonic plates float on the outer core.
The Earth's crust sits on top of the mesosphere.
The lithosph is made of plates that float on the asthnosph.
The tectonic plates float on the Earth's crust.
7
What is the Ring of Fire around the Pacific Ocean?
A string of earthquakes around the edges of the ocean
A string of volcano eruptions around the edges of the ocean
Area where large #'s of earthquakes/volcanic eruptions occur
8
What type of boundary is this?
Transform
Divergent
Convergent
9
What are hot spot volcanoes?
Hot mantle plumes break the surface in the middle of a plate
Hot mantle plumes burn through the lithosphere
Hot mantle plumes burn through the asthenosphere
Hot mantle plumes break between two plates
10
What is the relationship between the mantle, lithosphere and asthenosphere?
The mantle is part of the asthenosphere but not lithosphere
The three layers are completely separate.
Asthenosphere is part of the mantle below the lithosphere
The mantle is part of the lithosphere but not asthenosphere
11
When an oceanic crust meets a continental crust, what occurs?
Ocean crust moves under the continent crust making volcanoes
Both crusts are subducteddown into the mantle
The crusts converge making fold mountains like the Himalayas
Ocean crust moves over the continent crust making volcanoes
12
What is a tectonic plate?
A slab of solid rock, made of continental lithosphere
A slab of solid rock, made of oceanic lithosphere
A slab of solid rock, made ofcontinent and ocean lithosphere
A slab of the mesosphere that floats on the lithosphere
13
Where do earthquakes occur?
On the edges of mountain ranges
In the center of tectonic plates
In the mantle
Along tectonic plate edges and faults
14
How many continents are there today?
Six
Seven
Eight
Five
15
When two oceanic plate boundaries meet, this crustal feature forms?
Sea Floor Spreading
Volcanic Island Arc
Folded Mountains
Plate Tectonics
16
The Indian Plate converges with the Eurasian Plate. When this happened, what was formed?
Volcanoes
Folded Mountains
Rift Valley
Ocean Basin
17
The San Andreas Fault is known as an active earthquake area. What type of boundary is it?
Diverging
Converging
Sea Floor Spreading
Transform
18
The large plates move across the surface of the Earth by what process
Condensation
Radiation
Convection
Conduction
19
What type of boundary is this?
None of these
Transform
Divergent
Convergent
20
What type of boundary is this?
Divergent
Convergent
Transform
