The Layers of Earth
Year 1 Science
Setting up the Cover Page
The Layers of Earth
Pangaea
Geology: The Study of Earth
Convergent
Divergent
Transform
Setting up our
Table of Contents
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Assignment Name Assignment Name
Table of Contents
INB Rubric
Unit Vocabulary
Unit Vocabulary
Layers of the Earth- Layers of the EarthFoldable
Notes
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EQ: What are the 4 layers of
Earth?
The Layers of Earth
The Layers of the Earth
The Four Layers
The Earth is composed of four layers:
1. Crust
2. Mantle
3. Outer Core
4. Inner Core
1. The Crust
•
•
•
•
Acts like the skin of an apple
Is the thinnest layer
Under the ocean = oceanic crust
Under the continents = continental crust
Plates
• The crust of the
planet is broken into
pieces called plates
• The plates “float” on
the other three
layers
2. The Mantle
• Largest layer
• Made of hot dense rock that flows
• Can be broken into 2 sections:
- Upper mantle (lithosphere)
- Lower/middle mantle (asthenosphere)
The Lithosphere
• rigid rock that sits under the crust
The Asthenosphere
• What the plates “float” on top of
• Like plastic
Convection Currents
• Causes the mantle to
flow
• Hot materials rises,
cools, and sinks- cycle
repeats over and over
3. The Outer Core
• VERY HOT!
• Liquid that contains
melted metals (iron
and nickel)
4. The Inner Core
• Pressure and temperatures are very high
• Causes metals to be squeezed together = no
movement
• SOLID
Note: Review
• Highlight the following terms: Crust, Mantle, Inner Core,
Outer Core, Convection Current, Oceanic Crust, Continental
Crust, Lithosphere, Asthenosphere
• In BLUE, draw a square around all information on CRUST
• In GREEN, draw a square around all information on
MANTLE
• In RED, draw a square around all information on OUTER
CORE
• In PURPLE, draw a square around all information on INNER
CORE
The Layers of Earth Rap