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- The crust and the upper mantle form the lithosphere. The lithosphere is around 100km thick and is solid and brittle.
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There are three layers that make up the Earth’s structure. The three layers, starting from the outside, are: the crust – the rocky outer layer. the mantle – the semi-solid middle layer. the ...
Aug 21, 2023 · Inner Core: The innermost part of the Earth is its inner core. It’s solid, consisting primarily of iron and nickel, and is incredibly hot, with temperatures soaring up to around 5500°C. This heat is due to the decay of radioactive particles and the immense pressure at such depth.
The inner core, a solid mass over iron and nickel, forms the Earth’s centre. The temperature of the core is around 5500°C. Take our structure of the earth quiz to test your knowledge.
- Crust
- Mantle
- Liquid Outer CORE
- Solid Inner CORE
The earth’s crust is the planet’s outermost layer. It contains all biological life as yet known, yet it is the shallowest layer of all. Some scientists compare the earth’s crust to the top crust on an apple pie – delicate, thin, and covering a piping hot interior. The crust has two parts which we’ll discuss in more detail later in this article. For...
The mantle is the second chemical layer of the earth. It is composed of mostly melted rocks, depending on where you are in the depth of the earth. It’s the most abundant of all the layers of the earth – it makes up almost 85% of the volume of the globe. It’s difficult to study the mantle because there is no way to physically view it. Liquid rock is...
The core of the earth is composed mainly of nickel and iron, which originated from meteor strikes when the world was first forming. The two parts of the core – the outer solid and the inner liquid – are subject to intense pressure and heat. The reason they are divided into two sections is because of the metals’ reactions to the environmental condit...
The solid inner core of the earth is about 70% of the size of the moon. Its radius, the distance from its center to its outer edge, is estimated to be about 759 miles. Temperatures are almost 10,000 degrees F! Here, the heat is intense enough to liquify any metal, but the pressure at the center of the earth prohibits the core from acting like a liq...
- 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.
Nov 11, 2019 · 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.
Aug 1, 2023 · The Earth, like an onion, consists of several concentric layers, each with its own unique set of properties and characteristics. The four primary layers are the crust, the mantle, the outer core, and the inner core.
