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Earth's Layers
Test Description: Review for Earth's layers
Instructions: Answer all questions to get your test result.
1) Which is the thickest layer?
A
mantle
B
inner core
C
crust
D
outer core
2) Which layer is the thinnest?
A
mantle
B
outer core
C
crust
D
inner core
3) Which layer is plastic-like and allows the crust to flow over it?
A
Lithosphere
B
Asthenosphere
C
Outer Core
D
Inner core
4) Which layer is responsible for the Earth's magnetic field?
A
mantle
B
Inner core
C
crust
D
outer core
5) Which layer is solid and made of iron and nickel?
A
Crust
B
Outer core
C
Inner core
D
Mantle
6) Which layer has strong convection currents that are responsible for the movement of the crust?
A
outer core
B
mantle
C
inner core
D
crust
7) Which layer is made of two different kinds of layers, continental and oceanic?
A
outer core
B
crust
C
inner core
D
mantle
8) Which two rocks make up the majority of Earth's continental and oceanic crust?
A
basalt and scoria
B
granite and marble
C
granite and shale
D
granite and basalt
9) What is the order of Earth's layers from most dense to least dense?
A
crust, mantle, outer core, crust
B
Inner core, mantle ,outer core, crust
C
Crust, mantle, outer core, inner core
D
Inner core, Outer core, mantle, crust
10) Which layer plays the greatest role in the movement of Earth's tectonic plates?
A
Inner core
B
Outer Core
C
Crust
D
Mantle
11) Which two elements are mainly found in the inner core and outer core
A
Nickel and Silicone
B
Iron and Silicone
C
Nickel and Carbon
D
Iron and Nickel
12) Why is the inner core solid?
A
Iron and nickel are only solid
B
By studying and measuring the temperature of lava from volcanoes
C
Because it has immense pressure on it and cannot expand
D
By digging down deep to measure the temperature of magma
13) How do scientists know about the layers of the Earth?
A
By digging down deep to measure the temperature of magma
B
Because nickel is dense
C
By studying seismic waves made by earthquakes
D
Because it is made mostly of granite
14) The deepest wells and holes can make it to which layer?
A
Outer core
B
Inner core
C
Crust
D
Mantle
15) What parts of Earth make up the lithosphere?
A
Continental crust and oceanic crust
B
crust and lower mantle
C
crust and asthenosphere
D
crust and upper mantle
16) Which is the only entirely liquid layer of the Earth?
A
The outer core
B
The inner core
C
The lower mantle
D
The upper mantle
*select an answer for all questions
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