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Structure of the Earth

en.wikipedia.org/wiki/Structure_of_the_Earth

The interior structure of the Earth is layered in spherical shells, like an onion. These layers can ... The thicker crust is continental crust, which is less dense and composed of (felsic) sodium .....

What is Earth Made Of? - Space.com

www.space.com/17777-what-is-earth-made-of.html

Sep 26, 2012 ... The structure of the Earth is like an onion; it has multiple layers. Earth's layers consist of the crust, mantle and core. Several elements make up ...

Minerals, elements and the Earth's crust

www.rsc.org/education/teachers/resources/jesei/minerals/students.htm

Almost 99% of the minerals making up the Earth's crust are made up of just eight elements. Most of these elements are found combined with other elements as ...

What Four Elements Make Up Almost 90% of the Earth? | Education ...

education.seattlepi.com/four-elements-make-up-almost-90-earth-4351.html

Despite the large number of naturally occurring elements, the vast majority of the Earth's material is made of just four core elements. These elements are iron, ...

Why is the earth mostly made of silicon (rocks) - UCSB Science Line

scienceline.ucsb.edu/getkey.php?key=24

Why is the earth mostly made of silicon (rocks) and iron and other elements are ... The solar system is composed of the inner rocky planets (Mercury, Venus, ...

core - National Geographic Society - National Geographic Education

education.nationalgeographic.org/encyclopedia/core/

Aug 17, 2015 ... Another key element in Earth's core is sulfur—in fact 90% of the sulfur on ... The core is made of two layers: the outer core, which borders the ...

The Four Elements - One Universe at a Time

briankoberlein.com/2014/04/18/four-elements/

Apr 18, 2014 ... One of the things we have learned is that we—and every other living thing on Earth—are made up mostly of four elements. These four atomic ...

Are we really all made of stardust?| Explore | physics.org

www.physics.org/article-questions.asp?id=52

We are all made of stardust. It sounds like a line from a poem, but there is some solid science behind this statement too: almost every element on Earth was ...

Earth's mantle | Britannica.com

www.britannica.com/science/Earths-mantle

chemical element: The Earth's mantle ... of the high density and composition, it was proposed long ago that part of the upper mantle might be made of eclogite.

Earth's crust | geology | Britannica.com

www.britannica.com/science/Earths-crust

Direct observations of chemical composition can be made for the Earth, the ... of the elements, constituting, respectively, 2.6 and 2.4 percent of Earth's crust.

Answer
Earth has a molten core consisting of mostly iron and nickel. Its mantle and crust are composed of silicon and oxygen (silicate rock), with trace elements, and the crust also contains basalt .
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What Four Elements Make Up Almost 90% of the Earth? | The ...

classroom.synonym.com

Of the 92 naturally occurring elements, the Earth's geosphere -- the solid part of the Earth made up of the core, the mantle and the crust -- is primarily composed ...

What is the Earth's Mantle Made Of? - Universe TodayUniverse Today

www.universetoday.com

Mar 26, 2016 ... The Earth's layers, showing the Inner and Outer Core, the Mantle, and ... In terms of its constituent elements, the mantle is made up of 44.8% ...

Elements in the Earth's Crust - Windows to the Universe

www.windows2universe.org

Nov 13, 2007 ... The 8 most common elements in Earth's crust (by mass): ... An element (also called a "chemical element") is a substance made up entirely of ...