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1. letstalkscience.ca › educational-resourcesStructure of the Earth - Let's Talk Science

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   Jan 23, 2020 · Above the core is the mantle. Like the core, the mantle also has two layers. These are the lower mantle and the upper mantle. Both layers of the mantle are made up of hot, dense, semi-solid rock.

2. www.sciencefacts.net › layers-of-the-earthLayers of the Earth: Facts, Definition, Composition, & Diagram

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   • Crust. Temperature: 475 K (∼200°C) at the surface to 1300 K (∼1000°C) Thickness: 25 miles (32 km) for continental crust and 3-5 miles (8 km) for oceanic crust.
   • Upper Mantle. Temperature: 1200 K (∼ 932°C) at the upper boundary with the crust to 1900 K (∼1652 °C) at the boundary with the lower mantle. Thickness: 255 miles (410 km)
   • Lower Mantle. Temperature: 1900 K (∼ 1600°C) in the outer regions which can reach up to 4300 K (∼4000°C) at the bottom. Thickness: 1,400 miles (2,250 km)
   • Outer Core. Temperature: 4,300 K (4,030°C) in the outer regions to 6,000 K (5,730°C) closest to the inner core. Thickness: 1,355 miles (2,180 km) Density: 9,900 – 12,200 kg/m3.

3. sciencenotes.org › layers-of-the-earthLayers of the Earth - Science Notes and Projects

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   Aug 1, 2023 · 1. The Lithosphere. The lithosphere, about 10 to 200 km thick, includes the uppermost mantle and the crust. It’s rigid and breaks under stress, which is why it’s broken up into tectonic plates.

4. www.natgeokids.com › uk › discoverStructure of the Earth! - National Geographic Kids

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   • Inner Core. Temperature: 5,000°C – 6,000°C. State: Solid. Composition: iron and nickel. The Earth’s inner core is a huge metal ball, 2,500km wide. Made mainly of iron, the temperature of the ball is 5,000°C to 6,000°C – that’s up to 6,000 times hotter than our atmosphere and scorching enough to make metal melt!
   • Outer Core. Temperature: 4,000°C – 6,000°C. State: Liquid. Composition: iron, nickel, sulphur and oxygen. This liquid layer of iron and nickel is 5,150km deep.
   • Lower Mantle. Temperature: 3,000°C. State: solid. Composition: iron, oxygen, silicon, magnesium and aluminium. The lower mantle is found between 670km and 2,890km below the surface, and is made from solid rock.
   • Upper Mantle. Temperature: 1,400°C – 3,000°C. State: liquid / solid. Composition: iron, oxygen, silicon, magnesium and aluminium. This layer is up to 670km below the Earth’s surface.

5. www.snexplores.org › article › explainer-earth-layerExplainer: Earth — layer by layer - Science News Explores

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   Nov 11, 2019 · The inner core. This solid metal ball has a radius of 1,220 kilometers (758 miles), or about three-quarters that of the moon. It’s located some 6,400 to 5,180 kilometers (4,000 to 3,220 miles) beneath Earth’s surface. Extremely dense, it’s made mostly of iron and nickel.

6. geo.libretexts.org › Bookshelves › Geology6.3: Inside the Earth - Geosciences LibreTexts

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   Earth is made of three layers: the crust, mantle, and core. The brittle crust and uppermost mantle are together called the lithosphere. Beneath the lithosphere, the mantle is solid rock that can flow, or behave plastically.

7. People also ask

   Why is the metal at the inner core solid?

   • The metal at the inner core stays solid because of the incredible pressure surrounding it. This liquid layer of iron and nickel is 5,150km deep. The outer core flows around the centre of the Earth, and the movement of the metals creates our planet’s magnetic field.

   Structure of the Earth! - National Geographic Kids

   www.natgeokids.com/uk/discover/geography/physical-geography/structure-of-the-earth/

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   What are the layers of the Earth composed of?

   • In terms of composition, the crust is mostly silicate rocks and oxygen, while the core is largely iron and nickel. The mantle, which comprises the majority of Earth’s volume, is predominantly composed of silicate minerals rich in iron and magnesium. Now, let’s explore ten interesting facts about the layers of the Earth:

   Layers of the Earth - Science Notes and Projects

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   What is the layer under the ocean bed made of?

   • The layer beneath the ocean bed is made of oceanic crust, which is about 8km thick and made mainly from a rock called basalt. Learn all about the structure of the Earth here at National Geographic Kids! Join us as we explore the different layers - the crust, upper mantle, lower mantle, outer core and inner core...

   Structure of the Earth! - National Geographic Kids

   www.natgeokids.com/uk/discover/geography/physical-geography/structure-of-the-earth/

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   How many layers are there in the Earth's internal structure?

   • The earth’s internal structure is made up of three major layers: the crust, the mantle, and the core, The mantle and the core are further subdivided to form five distinct layers in total.

   Layers of the Earth: Facts, Definition, Composition, & Diagram

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   Which part of the Earth is a solid layer of rock?

   • The crust is the solid, rigid part of our planet. Unlike the deeper layers, the crust is a cool layer of rock. It has a thickness that varies from 5 to 80 km. Together, the upper part of the asthenosphere and the crust make up the lithosphere. Did you know?

   Structure of the Earth - Let's Talk Science

   letstalkscience.ca/educational-resources/backgrounders/structure-earth

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   What is the thickest layer of the Earth?

   • Thickest Layer: The mantle is the thickest layer of the Earth, accounting for about 84% of the Earth’s volume. It extends approximately 2,900 kilometers beneath the crust, which makes it nearly twice the thickness of the Earth’s outer and inner cores combined. Pressure: The pressure of the inner core at the Earth’s center is extreme.

   Layers of the Earth - Science Notes and Projects

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8. www.ck12.org › book › ck-12-earth-science-conceptsWelcome to CK-12 Foundation | CK-12 Foundation

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   Apr 12, 2012 · Earth's metallic core has an inner solid layer and an outer layer of liquid metal. The sun's core is where nuclear fusion takes place. crust: The rocky outer layer of the Earth's surface. The two types of crust are continental and oceanic. lithosphere: The layer of solid, brittle rock that makes up the Earth's surface; the crust and the ...