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The Enigma of 137: Science's Most Magical Number
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The number 137, which is significant in multiple applications, has long been an object of fascination for physicists, mathematicians and mystics.
Trillions and Quadrillions: A Short Guide to Absurdly Big Numbers
You've heard of Google, but what about a Googol? If not, then this tutorial is for you.
Can You Identify This Element From a Photo?
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Many of the elements that we were taught occur naturally around us. If you were given a picture of them, would you be able to identify it? Let's find out!
Can You Pass a Basic Chemistry Test?
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Do you know the periodic table from Argon to Zirconium? Test your chemistry knowledge with this basic quiz! It'll be a gas!
How the Periodic Table Works
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The periodic table currently organizes more than 100 named elements and several unnamed ones. Learn about the periodic table.
Can You Pass This Periodic Table Trivia Quiz?
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Let's take a trip back to high school chemistry class! Do you remember all those fun things you were taught about the periodic table? Jog your memory with this quiz, and we'll tell you how much knowledge your big brain managed to retain.
What Is an Isotope?
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You don't need to be a fan of chemistry to appreciate isotopes. They affect geology and medicine, too.
It's Elementary: The Periodic Table Quiz
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The periodic table of elements was an important turning point in the history of the chemistry. Take HowStuffWorks' periodic table quiz to learn more.
Can You Answer These Easy-Peasy Science Questions?
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What is water and why is the sky blue? Do you know what planet we live on, or the number of oceans on the planet? Science is all around us, and even if it's not your forte, you've probably amassed more knowledge than you realize. Here are some easy-peasy science questions to help you brush up on your knowledge.
Can You Ace This 12th Grade Physics Quiz?
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You're gonna have to get PHYSIC-al with this quiz. It's so easy, a high schooler can do it! Actually, some of them can't. Do you think you can get a better score than a 12th-grader?