Download Structures of the Earth

Structures of the Earth
4 Layers of the Earth
Essential Standards
6.E.2 Understand the
structure of the earth
and how interactions
of constructive and
destructive forces have
resulted in changes in
the surface of the
Earth over time and
the effects of the
lithosphere on
humans.
Clarifying Objectives
 6.E.2.1 Summarize the
structure of the earth,
including the layers, the
mantle and core based on
the relative position,
composition and density.
Essential Questions
• What are the Layers of the Earth?
• What is the order of DENSITY of the
Earth’s Layers?
• What materials & elements make up
each layer of the Earth?
• What position from inner to outer
are the Earth’s Layers found?
EOG Questions
What is the COMPOSITION of the
Earth’s core?
What is the order of DENSITY of the
Earth’s Layers?
Where it all Starts
• The Earth- the earth is
made mostly of rock
• 75% or ¾ of the earth • Structure of the Earth
is covered in liquid
& its Components |
water
Mocomi Kids
• There are 4 layers to
• http://www.youtube.
the earth…
com/watch?v=bgnn09
① Inner Core
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② Outer Core
③ Mantle
④ Crust
Layers of the Earth
• Layers of the EarthPhysical Structure
of the Earth from
inside to outside
• Layers of the Earth
tell scientists
① Position
② Composition
③ Density
Earth’s Density
• Remember that DENSITY
is how closely pact
TOGETHER ATOMS are
• The 4 Layers of Earth has a
very distinct Density
• The layers get more &
more dense the closer you
get to the CENTER of the
Earth
• Crust is the LEAST DENSE
• Inner Core is the MOST
DENSE
Essential Questions
Get with a
partner and
answer…
What are the
Layers of the
Earth?
What is the order
of DENSITY of
the Earth’s
Layers?
Earth’s Core
• The Earth’s Core
make up the first 2
Layers of Earth
• They make up the
① Inner Core
② Outer Core
• Outer & Inner Core
• http://www.youtu
be.com/watch?v=D
W4xWyiQdSM
Inner Core
• The Inner Core is the
DENSEST of the 4
Layers of Earth
• It is COMPOSED
(made) of SOLID
IRON
• Inner Core is located
at the very CENTER
of the Earth
Outer Core
• The Outer Core is
still very dense it
ranks 2nd in
DENSITY
• Outer Core is
composed of LIQUID
IRON
• Located as the
SECOND layer of the
Earth
Essential Questions
Get with a partner and answer…
What materials & elements make
up each layer of the Earth?
Mantle
Mantle ranks 3rd in
DENSITY behind the
Inner & Outer Core
Mantle is composed of a
combination of ROCKS &
GASSES that make
LIQUID MAGMA
The Mantle makes up the
3rd layer of the Earth
Essential Questions
• Get with a partner and answer…
• What materials & elements make up
each layer of the Earth’s mantle?
Crust
o The Earth’s Crust ranks last (4th) in
DENSITY as it is the LEAST dense layer of
the Earth
o The Crust is composted of the Crustal
Plates & Ocean Basin Plates
o It also contains the Athenosphere &
Lithosphere
o It makes up the 4th Layer of the Earth
Essential Questions
Get with a partner and answer…
What materials & elements make up each
layer of the Earth’s Crust?
Essential Questions
 Get with a partner and answer…
 What position from inner to outer are
the Earth’s Layers found?
EOG Questions
 Which best describes the Earth’s Crust?
 A) It is stationary and unable to move.
 B) It is thicker than the mantle and the core.
 C) It is located between the outer and the
inner core.
 D) It is composed of continental and oceanic
plates.
EOG Questions
Which best summarizes the
COMPOSITION of the Earth’s
Core?
A) It contains a solid outer
region surrounding a liquid
iron core.
B) It contains a liquid outer
region surrounding a solid
iron core.
C) It contains a semi-liquid
rock outer region surrounding
a liquid core.
D) It contains a basalt, semiliquid outer region
surrounding a solid core.
Important Points
The Earth has 4 Layers that tell
scientists
① Position
② Composition
③ Density
Mantle
① 3rd from the
Center
② LIQUID Magma
③ 3rd most DENSE
Inner Core
① Center of the Earth
② SOLID IRON
③ MOST DENSE
Crust
① LAST layer of
Earth
② Crustal Plates &
Oceanic Basin
Plates
③ LEAST DENSE
Outer Core
① 2nd from the Center
② LIQUID IRON
③ 2nd most DENSE
Crust also includes
Athensophere
Lithosphere