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Earth Structure Test Review Flashcards | StudBud
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Earth Structure Test Review
Earth Structure Test Review
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Earth Structure Test Review at PHMS
Flashcards
31 cards
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Questions
31
Answers
1
The main
rock types
that make up continental crust and oceanic crust are _____.
Silicon and Nickel
Granite and Silver
Iron and Basalt
Granite and Basalt
2
What did Harry Hess discover while mapping the ocean floor?
Oceanic Crust
Upper Mantle
Continental drift
Mid Ocean Ridge
3
The Mesosaurus lived in both Africa and South America. How did it probably get across the Atlantic Ocean?
It always lived on both sides of the Atlantic Ocean
It lived in South America and was brought over to Africa
It lived in Africa and was brought over to South America
It lived in both countries before they seperated
4
Which layer is composed mostly of solid iron and nickel?
Outer Core
Inner Core
Continental Crust
Mantle
5
Which layer is the MOST dense?
Inner Core
Crust
Mantle
Outer Core
6
It is hard to believe, but Earth's crust is primarily composed of ___________ and ___________.
Oxygen and Silicon
Iron and Nickle
Oxygen and Iron
Sodium and Magnesium
7
The Asthenosphere is the _____________
Solid upper mantle
Molten upper mantle
Solid Crust
Solid lower mantle
8
Why did scientists argue with Wegener's ideas?
He didn't have any evidence
He couldn't explain how it happened
He was a bully
He was wrong
9
Continental crust and oceanic crust
have basically the same composition.
False
True
10
Why is the outer core more dense than the lower mantle?
It is under more pressure
It is under less pressure
It is made of stronger materials
It is closer to the surface
11
The x on this graph could represent ________ and the y could represent _______________.
depth : temperature or density but, not pressure
pressure : temperature or density or pressure
temperature or density or pressure : depth
depth : temperature or density or pressure
12
Which layer is the LEAST dense?
Mantle
Inner Core
Continental Crust
Outer Core
13
How does seafloor spreading occur?
Essentially, it doesn't happen
Essentially, volcanoes push stuff up and out
Essentially, there is a build up of dirt and sand
Essentially, the Earth makes new rocks that pile up
14
As you increase depth, all of these increase except:
density
gravity
temperature
pressure
15
Wegener's name for one large landmass was __________.
Pangea
Continental Crust
Continental Drift
Allearth
16
From the inside out, list the the layers of Earth.
Inner Core - Outer Core - Mantle - Crust
Crust - Outer Core - Inner Core - Mantle
Mantle - Crust - Outer Core - Inner Core
Outer Core - Inner Core - Mantle - Crust
17
Which layer is composed mostly of liquid iron and nickel?
Mantle
Outer Core
Continental Crust
Inner Core
18
Continental crust and oceanic crust
have basically the same thickness.
False
True
19
How does seafloor spreading occur?
tectonic plates pull apart and new molten rock comes up to make new crust
The seafloor spreads apart due to erosion and deposition
tectonic plates are pushed apart by mylenic forces
outsources of pressure upwell internally
20
The lithosphere is _______________
The liquid mantle
The solid crust only
The solid crust plus the liquid mantle
The solid crust plus the solid upper mantle
21
Which evidence was not presented to support Wegener's ideas of Pangea and continental drift? (silly he wasn't believed)
Rocks and mountains almost perfectly matched each other ocross the Atlantic
The continents fit together like the pieces of a broken puzzle
Plant and animal Fossils were found in the Arctic Circle
Mesosaurus is oddly found in both Africa and South Africa
22
The asthenosphere is located in the ___________.
Crust and Mantle
Upper Mantle
Lower Mantle
Outer Core
23
Which layer is the HOTTEST?
Outer Core
Continental Crust
Inner Core
Mantle
24
Who developed the idea of continental drift?
Henry Trust
Henry Hess
Alfred Wagener
Frank Wright
25
How is Oceanic Crust the same as Continental Crust?
Oceanic crust is the same density
Oceanic crust the same state of matter
Oceanic crust is the same temperature
Oceanic crust is the same distance from the core
26
Earth's
CRUST
is thickest in the _________ and most dense in the __________.
Continental Crust : Oceanic Crust
Oceanic Crust : Oceanic Crust
Continental Crust : Continental Crust
Oceanic Crust : Continental Crust
27
________ is the rock type that makes oceanic crust.
Granite
Lithium
Iron and Nickle
basalt
28
When will earth's magnetic field cease to exist?
Asthenosphere
Inner Earth cools down
The Sun gets too large
No one knows
29
Of the following, which was not evidence Wegener used to prove continental drift?
Earthquakes pushed continents
Fossils located across different continents matched too well
Glaciers were in warm places
Mountain ranges and rocks matched across continents
30
For the picture, what is labeled #1?
Core
Mantle
Oceanic Crust
Continental Crust
31
________ is the rock type that makes continental crust.
Iron and Nickle
basalt
Granite
Lithium
