Podcast
Questions and Answers
What is the center of the Earth called?
What is the center of the Earth called?
- Outer Core
- Inner Core (correct)
- Mesosphere
- Crust
What is the state of matter of the Outer Core?
What is the state of matter of the Outer Core?
molten
The middle portion of the mantle is known as the ______.
The middle portion of the mantle is known as the ______.
Asthenosphere
The Mesosphere is the upper portion of the mantle.
The Mesosphere is the upper portion of the mantle.
Which layer surrounds the Inner Core?
Which layer surrounds the Inner Core?
What is the thickness range of the Upper Mantle?
What is the thickness range of the Upper Mantle?
What is the outermost layer of Earth called?
What is the outermost layer of Earth called?
The Lithosphere consists of the upper mantle and the ______.
The Lithosphere consists of the upper mantle and the ______.
Flashcards
What is the Earth's Inner Core?
What is the Earth's Inner Core?
The solid, extremely hot, and dense center of the Earth, mostly composed of iron and nickel.
What is the Earth's Outer Core?
What is the Earth's Outer Core?
The liquid layer surrounding the Inner Core, primarily made of iron and nickel.
What is the Earth's Mantle?
What is the Earth's Mantle?
The semi-solid, mostly rock layer beneath the Earth's crust, responsible for tectonic plate movement.
What is the Asthenosphere?
What is the Asthenosphere?
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What is the Earth's Crust?
What is the Earth's Crust?
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What is the Earth's Lithosphere?
What is the Earth's Lithosphere?
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What is the Mesosphere?
What is the Mesosphere?
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True or False: The Mesosphere is the upper portion of the mantle.
True or False: The Mesosphere is the upper portion of the mantle.
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Study Notes
Inner Core
- Center of the Earth with a thickness of 1280 km.
- Composed primarily of iron and nickel.
- Maintains a solid state despite extreme temperature range of 6000-7000°C.
Outer Core
- Surrounds the inner core with a thickness of 2250 km.
- Composed of molten iron and nickel.
- Temperature ranges from 4000-5000°C.
Mesosphere
- The lower portion of the mantle with a thickness of 2000-2200 km.
- Composed of solid rock.
- Temperatures in this layer range from 3200-4000°C.
Asthenosphere
- Positioned in the middle of the mantle with a thickness of 400-600 km.
- Contains molten rock.
- Temperature range is between 3000-3200°C.
Upper Mantle
- The upper portion of the mantle, measuring 200-300 km in thickness.
- Consists of solid rock.
- Temperature varies from 2800-3000°C.
Crust
- The outermost layer of the Earth with a variable thickness of 5-70 km.
- Primarily composed of solid rock.
- Temperature is variable depending on location.
Lithosphere
- Comprises the upper mantle and crust, with a total thickness of 250-300 km.
- Made up of solid rock.
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