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Alkali Metals: Elements in the First Column of the Periodic Table

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Although the term might be unfamiliar, you know all about alkali metals. Ever used salt or eaten a banana? So, what special properties do these elements have?

What Would Happen if a Solar Storm Hit Earth?

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Solar flares disrupt Earth's magnetic field when they hit the planet, causing issues with power and GPS. But if a major solar storm hit Earth, the consequences could be catastrophic.

Why Photosynthesis is Important

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Remember learning about photosynthesis when you were a kid? Let's pretend for a moment that this vital process could somehow permanently stop. How tough would it be to continue to live on this Earth?

Test Your Vocabulary With This Quiz!

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Want to test your smarts without the headache of a graduate program? Take this vocabulary quiz, and let's find out if you're smarter than a Ph.D. student.

How Well do You Know Your '90s Trends and Fads?

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Do you still remember the most prevalent fads and trends of the 1990s? "No duh," you say? Then prove it. Go ahead and take our '90s fads and trends quiz now!

Are You Smarter Than a 5th Grader: Science Edition!

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Do you think you're smarter than a 5th grader when it comes to science? Can you answer these elementary science questions? Let's find out with this quiz!

Can You Guess Each of These Car Parts Using Only Emojis?

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So you love emojis and cars? Well, let's test your brain to its fullest with car parts depicted by emojis. This is a tough one!

A Bicycle Built of Bamboo Is the Ultimate Eco-friendly Ride

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Building bicycles with environmentally friendly bamboo is an idea whose time has come. We talk to a master bamboo bike builder about the ins and outs.

What's the World's Tallest Building?

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In the last few decades, there's been a sort of arms race to build ever-taller skyscrapers. Which seven currently rank as the world's tallest buildings?

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