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Earth's Layers/Continental Drift Review Flashcards | StudBud
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Earth's Layers/Continental Drift Review
Earth's Layers/Continental Drift Review
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1
The tectonic plates are part of Earth's __________.
lithosphere
mesophere
asthenosphere
Outer Core
2
The continental crust is the densest crust.
True
False
3
Does the ocean floor continue to get bigger and bigger?
No!
Yes!
4
Where is the oceanic crust the OLDEST?
near a mid-ocean ridge
near the continents
5
The lithosphere is made up of the crust and __________.
asthenosphere
lithosphere
upper mantle
hydrosphere
6
How hot is the core?
As hot as an oven
As hot as the sun
Five times hotter than boiling water
As hot as iron
7
The two types of crust are ________ and __________.
land; pangea
continental; oceanic
oceanic; land
oceanic; volcanic
8
Who first proposed the theory of Continental Drift?
Albert Einstein
Alfred Wegener
Charles Darwin
Harry Hess
9
The plates are floating on Earth's ____________.
mesosphere
crust
asthenosphere
lithosphere
10
A place where two plates meet; a break in Earth's crust.
fault
crack
plate
fold
11
What is the Continental Drift Theory?
A theory about the movement of Earth's continents
A theory about Earth's layers
A theory about Earth's spheres
A theory about the solar system
12
Where are the oceans located?
In pockets of the crust
On top of the continental plates
On top of the oceanic plates
None of the above
13
What is the innermost layer of the Earth?
asthenosphere
mantle
outer core
inner core
14
What causes the tectonic plates to move?
They don't move
Subduction Zone
Sonar
Convection Currents
15
This layer is the thinnest and very brittle
crust
mantle
outer core
inner core
16
Evidence for seafloor spreading was found in the __________.
1930s
1850s
1890s
1950s
17
The layer that makes up most of the Earth's mass is ___________.
magma
crust
core
mantle
18
Are the continents still drifting?
Yes
No
19
What forms when two continental, convergent plates push together?
Island
Earthquakes
Volcano
Mountain
20
At mid-ocean ridges, new _________ crust are formed.
oceanic
continental
21
What is the name for an underwater mountain chain?
seamount
volcanic island
mid-ocean trench
mid-ocean ridge
22
This layer of the Earth is the densest
Inner Core
Crust
Mantle
Outer Core
23
When two plates slide past one another, it is called a __________
Convergent Boundary
Transform Boundary
Divergent Boundary
24
True or False. The PHYSICAL layers of the Earth are crust, mantle, and core.
True
False
25
The crust of the Earth is made mostly of __________.
silicon & nickel
iron & nickel
iron & oxygen
oxygen & silicon
26
What was one of the reasons Wegener's hypothesis was originally rejected?
He could not explain HOW the continents moved.
He could not explain where the continents went
He smelled like rotten eggs.
They didn't like him because he was a meteorologist.
27
The largest and most powerful mountains and volcanoes are located __________.
Austraila
underwater
Appalachian Mountains
Mt. St. Helens
28
___________ proposed The Theory of Seafloor Spreading in the 1950s.
Harry Houdini
Alfred Wegener
Albert Einstein
Harry Hess
29
What is the first major advancement in sea floor mapping?
Sonar
Magnetic reversals
All of the above
30
What clue supported the Continental Drift Theory?
a puzzle-like fit of the continents
A puzzle-like fit of all the continents
Similar rock structures found on other continents
All of the above
31
What is the name of the Supercontinent?
South America
North America
Pangea
Africa
32
What is the deepest layer a person has ever gotten to?
The Crust
The Upper Mantle
The Outer Core
The Mantle
