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  2. Explainer: Earthlayer by layer - Science News Explores

    www.snexplores.org/article/explainer-earth-layer-laye

    Starting at the center, Earth is composed of four distinct layers. They are, from deepest to shallowest, the inner core, the outer core, the mantle and the crust. Except for the crust, no one has ever explored these layers in person. In fact, the deepest humans have ever drilled is just over 12 kilometers (7.6 miles).

  3. Internal structure of Earth - Wikipedia

    en.wikipedia.org/wiki/Internal_structure_of_Earth

    The internal structure of Earth are the layers of the Earth, excluding its atmosphere and hydrosphere. The structure consists of an outer silicate solid crust, a highly viscous asthenosphere, and solid mantle, a liquid outer core whose flow generates the Earth's magnetic field, and a solid inner core.

  4. Earth's Interior | National Geographic

    www.nationalgeographic.com/science/article/earths-interior

    The Earth's interior is composed of four layers, three solid and one liquid—not magma but molten metal, nearly as hot as the surface of the sun. The deepest layer is a solid iron ball,...

  5. 3.1: Earth’s Layers- Crust, Mantle, and Core

    geo.libretexts.org/Bookshelves/Geology/Physical_Geology_(Panchuk)/03:_Earths...

    Earth consists of three main layers: the crust, the mantle, and the core (Figure 3.3). The core accounts for almost half of Earth’s radius, but it amounts to only 16.1% of Earth’s volume. Most of Earth’s volume (82.5%) is its mantle, and only a small fraction (1.4%) is its crust. Figure 3.3 Earth’s interior.

  6. Layers of the Earth - Science Notes and Projects

    sciencenotes.org/layers-of-the-earth

    The four main layers of the Earth are the crust, mantle, outer core, and inner core. The Earth, like an onion, consists of several concentric layers, each with its own unique set of properties and characteristics.

  7. 5.1: Earth’s Interior - Geosciences LibreTexts

    geo.libretexts.org/Courses/Lumen_Learning/Book:_Earth_Science_(Lumen)/05...

    Understanding Earth’s Interior. Before you can learn about plate tectonics, you need to know something about the layers that are found inside Earth. These layers are divided by composition into core, mantle, and crust or by mechanical properties into lithosphere and asthenosphere.

  8. 9.1: The Earth's Interior - Geosciences LibreTexts

    geo.libretexts.org/Courses/Kansas_State_University/Physical_Geography:_our...

    What we do know is that the Earth's interior is somewhat like a concentric series of rings, progressing from the dense and intensely hot inner core toward the brittle outer shell of the crust. Geoscientists describe the layered interior of the earth on the basis of chemical composition or mechanical (physical) properties, like its ability to flow.

  9. Layers of the Earth - animated diagram

    earthguide.ucsd.edu/earthguide/diagrams/layers

    Does lava that appears at the Earth's surface originate in the molten outer core? How long have the Earth's layers existed? Was the interior of the early Earth more or less homogenous than it is today?

  10. Cut-away Diagram of Earth’s Interior - NASA

    www.nasa.gov/image-article/cut-away-diagram-of-earths-interior

    A cut-away illustration of Earth’s interior. At the heart of our planet lies a solid iron ball, about as hot as the surface of the sun. Researchers call it “the inner core”, which is 70% as wide as the moon. It spins at its own rate, as much as 0.2o of longitude per year faster than the Earth layers above it.

  11. The three interior layers of the Earth: the crust, the mantle,...

    www.britannica.com/video/Earth-crust-layers-core-mantle/-148023

    The crust sits on the mantle, which takes up 80 percent of the planet's volume. The upper part of the mantle is rigid, while at greater depths the rock is partially melted at temperatures as high as 3,000 degrees Celsius. Finally, the center of Earth is called the core.