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The State Map Outline Quiz

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They might vary in size and dimensions, but in the end, every state has a shape. Do you know how the states have shaped up over the years? Here's your chance to find out!

What's a mystery clock?

electronics.howstuffworks.com/gadgets/clocks-watches/mystery-clock.htm

Mystery clocks represent that enigmatic intersection between horology and magic. What makes mystery clock's floating hands move and keep time so well?

10 Power Crystals for Protection and Positive Energy

science.howstuffworks.com/environmental/earth/geology/crystals-for-protection.htm

Discover Crystals for Protection: Harness the power of protective stones. Explore their meanings and benefits. Enhance your energy shield today.

The Ultimate Marvel Cinematic Universe Quiz

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Marvel fans, this one's for you! Old or new, young or young at heart, we know you can answer these heroic questions about your favorite heroes. Has it really been a decade since we saw the first MCU efforts? Then let's rediscover all those years with fun film facts. Fly away with this quiz!

How Digital Scales Work

electronics.howstuffworks.com/gadgets/fitness/digital-scale.htm

Digital scales are common measuring devices that harness several physical laws. Learn how digital scales weigh everything from peanuts to penguins.

Can You Name the U.S. State from 3 Random Facts?

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Are you the champ at your local watering hole's Trivia Night? As an elementary school student, did you pore through your American History textbook just for fun? Put your knowledge to the test with these fun-but-random facts about 35 of our nation's unique states!

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.

10 Most Deceptive PR Campaigns in History

money.howstuffworks.com/10-deceptive-pr-campaigns-in-history.htm

Diamonds are rare? Not really. They became an engagement ring staple, thanks to a clever, if deceptive, public relations campaign.

How Diamonds Work

science.howstuffworks.com/environmental/earth/geology/diamond.htm

Diamond engagement rings. Diamond anniversary bands. Diamond earrings and necklaces. And now, the right-hand diamond ring! The four Cs -- cut, clarity, carat and color. Find out what the fuss is all about.

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