the layers of earth year 1 science. geology: the study of earth convergent pangaeathe layers of...
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The Layers of Earth
Year 1 Science
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Geology: The Study of EarthConvergent
PangaeaThe Layers of Earth
TransformDivergent
Setting up the Cover Page
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Pg # Assignment Name Assignment Name Pg #0 Table of Contents INB Rubric 12 Unit Vocabulary Unit Vocabulary 34 Layers of the Earth-
FoldableLayers of the Earth-
Notes5
Setting up ourTable of Contents
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EQ: What are the 4 layers of Earth?
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The Layers of Earth
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The Layers of the Earth
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The Four Layers
The Earth is composed of four layers:1. Crust2. Mantle3. Outer Core4. Inner Core
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1. The Crust
• Acts like the skin of an apple• Is the thinnest layer• Under the ocean = oceanic crust• Under the continents = continental crust
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Plates
• The crust of the planet is broken into pieces called plates
• The plates “float” on the other three layers
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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)
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The Lithosphere
• rigid rock that sits under the crust
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The Asthenosphere
• What the plates “float” on top of• Like plastic
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• Causes the mantle to flow
• Hot materials rises, cools, and sinks- cycle repeats over and over
Convection Currents
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3. The Outer Core
• VERY HOT!• Liquid that contains
melted metals (iron and nickel)
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4. The Inner Core
• Pressure and temperatures are very high• Causes metals to be squeezed together = no
movement• SOLID
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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