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Geochemistry

Quiz: How much do you know about the composition of Earth?

Test your knowledge of the elements and minerals in our planet’s different layers.

by Andy Brunning, special to C&EN
July 2, 2025
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Most Popular in Physical Chemistry

 

 

Before you take our quiz on Periodic Graphics: The composition of Earth, make sure you check out our Periodic Graphic for some helpful hints.

What type of seismic waves gets refracted by Earth’s liquid outer core?
What is the most abundant element by mass in Earth’s crust?
What is the most abundant metal by mass in Earth’s crust?
What is the most abundant metal by mass in Earth’s mantle?
What is the most abundant element by mass in Earth’s core?
What are the approximate percentages of iron and nickel in Earth’s core?
What is the average radius of Earth?

You Scored xxxpercentxxx% - xxxnumberxxx out of xxxnumberxxx

Chemical & Engineering News
ISSN 0009-2347
Copyright © 2025 American Chemical Society

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