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Earth's layers

Total questions: 12

Worksheet time: 9mins

Name
Class
Date
1.
What is the outermost layer of the Earth?
a)
crust
b)
mantle
c)
outer core
d)
inner core
2.
Which is thicker, continental or oceanic crust?
a)
continental
b)
oceanic
3.
What layer of the mantle is flexible like plastic?
a)
lithosphere
b)
asthenosphere
c)
lower mantle
4.
What layer of the mantle breaks into plates and is like the crust?
a)
lithosphere
b)
asthenosphere
c)
lower mantle
5.
Which part of the core is liquid metal?
a)
outer core
b)
inner core
6.
What two metals make up the core?
a)
aluminum and silver
b)
iron and nickel
7.
What layer is the thickest?
a)
crust
b)
mantle
c)
inner core
d)
outer core
8.

What is the order of Earth's layers from most dense to least dense?

a)

crust, mantle, outer core, inner core

b)

crust, outer core, mantle, inner core

c)

inner core, outer core, mantle, crust

d)

inner core, outer core, crust, mantle

9.

Which layer is considered the tectonic plates of Earth?

a)

lithosphere

b)

asthenosphere

c)

mesosphere

10.

Why is the inner core believed to be solid?

a)

because iron and nickel are always solid

b)

because nickel is not dense

c)

because it has immense pressure on it by all the layers above it and cannot expand or flow

d)

because it is mostly made of granite and basalt, two solid substances

11.

The deepest wells and holes have only been drilled into which layer?

a)

the core

b)

the mantle

c)

the crust

12.

What parts of Earth makes up the lithosphere?

a)

crust and lower mantle

b)

crust and asthenosphere

c)

crust and upper mantle

d)

continental crust and oceanic crust