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Layers Quiz

Multiple Choice
Identify the choice that best completes the statement or answers the question.
 

 1. 

The thinnest part of the crust is
a.
a coastal plain.
c.
the middle of the ocean.
b.
a mountain range.
d.
the center of a continent.
 

 2. 

Which layer of  Earth makes up most of the Earth’s mass?
a.
the mantle
c.
the outer core
b.
the lithosphere
d.
the inner core
 

 3. 

The solid, dense center of our planet is called the
a.
asthenosphere.
c.
outer core.
b.
mesosphere.
d.
inner core.
 

 4. 

Which technology do scientists use to study the inside of the Earth?
a.
Geiger Counters
c.
seismographs
b.
telescopes
d.
radar
 

 5. 

What two things increase as we go deeper and deeper into the Earth?
a.
the types of rocks
c.
the number of elements
b.
the amount of oxygen and silicon
d.
temperature and pressure
 

 6. 

The outermost, crunchy layer of the Earth is called the
a.
outer core.
c.
lithosphere.
b.
asthenosphere.
d.
mesosphere.
 

 7. 

The thickest part of the crust lies below
a.
the center of a continent.
c.
the middle of the ocean.
b.
a coastal plain.
d.
a mountain range.
 

 8. 

mc008-1.jpg
Which layer is the densest?
a.
A
c.
C
b.
B
 

 9. 

Why is the inner core a solid?
a.
it is made of different elements than the outer core
c.
the temperature is cooler than the outer core
b.
the tremendous pressure caused by the weight of the Earth’s layers squeezes it into a solid
d.
it has less pressure than the mantle
 

 10. 

The core is actually divided into two parts.
a.
the outer core is denser than the inner core
c.
the inner core is liquid because of the heat
b.
the inner core is mostly iron and nickel
d.
the outer core is hotter than the inner core
 

 11. 

There are two kinds of crust
a.
basaltic and oceanic
c.
oceanic and continental
b.
dense and less dense
d.
molten and rocky
 

 12. 

The density is greatest in Earth’s
a.
core
c.
upper mantle
b.
crust
d.
lower mantle
 

 13. 

Arrange the layers of the Earth from INNERMOST to OUTERMOST!
a.
core, lithosphere, mantle
c.
mantle, core, lithosphere
b.
lithosphere, core, mantle
d.
core, mantle, lithosphere
 

 14. 

mc014-1.jpg
Which layer would be the hottest?
a.
A
c.
C
b.
B
 



 
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