Earth's Layers - Mrs. Kwon's Online...
Transcript of Earth's Layers - Mrs. Kwon's Online...
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Earth's Layers
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Earth's Layers Notes
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Topics: Earth's Layers
- We know what the inside of the earth looks like from studying seismic waves
How do we know what the inside of the earth looks like?
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- We know what the inside of the earth looks like from studying seismic waves
How do we know what the inside of the earth looks like?
- Earth is made of layers
- Temperature and pressure increase within Earth as you go deeper.
What is the temperature like inside Earth?
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- We know what the inside of the earth looks like from studying seismic waves
How do we know what the inside of the earth looks like?
- Earth is made of layers
- Temperature and pressure increase within Earth as you go deeper.
What is the temperature like inside Earth?
- The thin, rocky, outer layer of Earth is called the CRUST.
What is the CRUST?
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- We know what the inside of the earth looks like from studying seismic waves
How do we know what the inside of the earth looks like?
- Earth is made of layers- Temperature and pressure increase within Earth as you go deeper.
What is the temperature like inside Earth?
- The thin, rocky, outer layer of Earth is called the CRUST.
What is the CRUST?
- 2 types of Crust - Ocean Crust - Continental Crust
- Rocks that make up the crust are rigid and brittle
What are the two types of crust?
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- The thin, rocky, outer layer of Earth is called the CRUST.
What is the CRUST?
- 2 types of Crust - Ocean Crust - Continental Crust
- Rocks that make up the crust are rigid and brittle
What are the two types of crust?
- The MANTLE is a thick layer of rock below the crust. - Upper mantle - brittle- Lower mantle - plastic - Asthenosphere
What is the asthenosphere?
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- 2 types of Crust - Ocean Crust - Continental Crust- Rocks that make up the crust are rigid and brittle
What are the two types of crust?
- The MANTLE is a thick layer of rock below the crust. - Upper mantle - brittle- Lower mantle - plastic - Asthenosphere
What is the asthenosphere?
- The crust + upper mantle = the brittle outer layer of Earth called the lithosphere.
What is the lithosphere?
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- The MANTLE is a thick layer of rock below the crust. - Upper mantle - brittle- Lower mantle - plastic - Asthenosphere
What is the asthenosphere?
- The crust + upper mantle = the brittle outer layer of Earth called the lithosphere.
What is the lithosphere?
- The dense metallic center of Earth is called the core- Made of iron- 2 layers - Inner: Solid - Outer: Liquid
What is the core made of?
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Standard 1.b. Students know Earth is composed of several layers: a cold, brittle lithosphere; a hot, convecting mantle; and a dense, metallic core.Earth's Layer Thickness Temperature What it's
made of
Crust Very Thin Cold RocksIt is brittle
Mantle Very Thick Hot RocksIt is plastic
Outer Core Thick Very hot Liquid metal
Inner Core Thick Extremely hot Metal