Earth's Interior
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by Erin Smoak
| 32 Questions
Note from the author:
Earth's Layers
1
4 pts
List the 4 main layers of earth from outside to inside
  1. Crust
  2. Outer Core
  3. Inner Core
  4. Mantle
2
1 pt
Geologists use two lines of evidence to learn about earth's interior: evidence from rock samples and evidence from volcanoes.
True
False
3
1 pt
The continental crust is thicker and less dense than oceanic crust.
True
False
4
1 pt
Pressure and temperature increase as you move deeper below earth's surface.
True
False
5
1 pt
The lithosphere is made of rock that is strong and rigid.
True
False
6
2 pts
Which Layers of earth are completely located in the mantle?
Lithosphere
Asthenosphere
Mesosphere
Crust
Outer Core
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7
8
7
1 pt
How long has the earth's surface been shifting?
8
1 pt
How many major plates are on Earth?
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9
10
11
12
9
2 pts
How hot is the mantle?
10
2 pts
What is the temperature-propelled motion in the mantle called?
11
1 pt
Where are the 2 extra hot regions of the mantle?
Africa
East coast of North America
Central Pacific Ocean
Antarctica
12
1 pt
How long does it take for the oldest, coolest parts of the crust to sink back into the mantle?
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13
14
15
13
1 pt
How fast do plates move?
14
1 pt
What was the name of the giant landmass about 250 million years ago?
Pangaea
Laurasia
Gondwanaland
15
1 pt
What is the theory of today called?
continental drift
plate tectonics
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16
16
1 pt
About how long will the Atlantic ocean take to open and close again?
1 billion years
300-500 billion years
300-500 million years
400-600 million years
17
1 pt
The mantle is nearly 2,000 km thick.
True
False
18
1 pt
Where does the energy for mantle convection come from?
The Mesosphere
The Core
The Lithosphere
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19
20
21
22
23
24
25
19
2 pts
What force causes the convection cell to turn at point 2?
20
2 pts
What causes the convection cell to turn left at number 3?
21
1 pt
Where is the density of the mantle material greater?
1
2
22
1 pt
Where is the temperature of the mantle greater?
3
4
23
1 pt
Which of these is mantle?
F
B
A
C
24
1 pt
Which of these is oceanic crust?
F
H
A
B
25
1 pt
Which of these is continental crust?
G
B
A
F
26
1 pt
Density is the measure of how much ______ is in a given volume of a substance?
Length
Mass
Volume
Energy
27
1 pt
A cool fluid is less dense than a warm fluid.
True
False
28
2 pts
What are the 2 metals that make up earth's core?
Magnesium
Nickel
Iron
Silica
29
1 pt
The Earth's magnetic field is created by movement in the mesosphere.
True
False
30
1 pt
Which of these would a compass in the northern hemisphere point to?
Magnetic North
Geographic North
North Pole
Magnetic South
31
2 pts
What is the source of energy that drives plate tectonics?
32
5 pts
Categorize the layers of the earth by their state.
  • Lithosphere
  • Asthenosphere
  • Mesosphere
  • Outer Core
  • Inner Core
  • Solid
  • Liquid
  • Plastic
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