Layers of the Earth
Stephen Hill’s 3rd Grade Class
Click on the globe to begin!
Click on one…
Vital Information
 AZ Academic Content Standards
Science– ----(S6, C1, PO 1)
 AZ Technology Standards
(S3, C1, PO 1)

NETS*T
Standard 1; Outcome C

Information Literacy Standards
Standard 1; Benchmark 2
References:
http://www.youtube.com/watch?v=3xLiOFjemWQ
http://www.schools.utah.gov/curr/science/sciber00/7th/earth/sciber/erlayers.htm
http://www.youtube.com/watch?v=ukqe_6L9V54
Directions
Go through the lesson and be sure to pay close attention.
2. There will be a quiz at the end of the lesson .
1.
Introduction
 This brief video above will show
you the temperatures and distance
(in kilometers) for each layer.
Enjoy.
 Earth has three layers: crust, mantle
and the core.

The core is divided into 2 parts:
Outer Core and Inner Core.
Crust
The Crust contains
the Continents and
the seas.
The thickness is
between 15-75
kilometers.
It is the smallest
layer of the Earth.
On the right, there is
a video that covers
each layer but watch
for the information
regarding the crust.
Mantle
o
The Mantle is located under the crust.
o
It is the largest layer of the Earth.
o
The Mantle can be divided in two regions: the upper and lower regions.
o
Upper Mantle is 400 kilometers thick and is composed of Iron and Magnesium
Silicates
o
Lower Mantle is about 2300 kilometers thick and is more dense (due to
pressure).
Core
Outer Core
Inner Core
2,300 kilometers thick.
1,220 kilometers thick.
Composed of liquid.
Composed of solid.
Mainly is made up of Iron, Nikel and
Sulphur.
Mainly is made up of Iron, Nikel and
Sulphur.
Temperature is 6650 Celsius.
Quiz!
1. The quiz will be true/false statements.
2. There will be 4 questions.
Question 1
True or False: The Crust can be divided into 2 sections?
True
False
Question 2
True or False: The layers of the Earth are in this order: Crust,
Mantle and Core?
True
False
Question 3
True or False: The Mantle is the largest layer of the Earth?
True
False
Question 4
True or False: The Outer Core is 2,300 kilometers thick?
True
False
Correct!
Incorrect!
Conclusion