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Could You Pass Your Kid's Middle School Fitness Test?
They're probably the bane of your middle school memories. So why do we still subject kids to physical fitness tests? HowStuffWorks investigates.
How Old Is Earth and How Did Scientists Figure It Out?
science.howstuffworks.com/how-old-is-earth.htm
In 1953, CalTech geochemist Clair Patterson came up with an estimate for Earth's age that still holds today.
Behind the X Prize
science.howstuffworks.com/x-prize.htm
We know who won - top-runner SpaceShipOne. We know what the team receives for that accomplishment: $10 million and an obscenely gigantic trophy. But what about the story behind the contest? Learn about the rules, restrictions, red tape, test crashes, successful launches and the technological innovations that may get you into sub-orbit sooner than you think.
How Stocks and the Stock Market Work
money.howstuffworks.com/personal-finance/financial-planning/stocks.htm
A stock market is used for the trading of shares of company stock. Find out how the stock market works and learn about the stock trading process.
Can You Really Outrun a Volcano?
science.howstuffworks.com/nature/natural-disasters/can-outrun-volcano.htm
In the movies it looks so easy. A team of scientists are working near the crater of a volcano when it suddenly erupts. They jump in their vehicle and outrace the surging lava flow to safety. In reality, it just doesn't happen that way.
How Virgin Galactic Works
science.howstuffworks.com/virgin-galactic.htm
Virgin Galactic is the first commercial space tourism company, offering flights to space. Read about Virgin Galactic.
Is That Job Posting a Scam? 4 Ways to Tell
money.howstuffworks.com/job-posting-scam.htm
The red-hot U.S. labor market has also meant a red-hot market for online job scams. What are some ways to tell a job posting is not legit?
What Is the Moon Made Of? Kaleidoscopic Map Sheds Light
science.howstuffworks.com/geologic-moon-map.htm
You're not the first person to ask, "What is the moon made of?" Scientists spent decades creating the Unified Geologic Map of the Moon to answer this and more.
How does piston shape affect combustion?
auto.howstuffworks.com/piston-shape-affect-combustion.htm
How does piston shape affect combustion? Learn about the effects that the shape of an engine's pistons can have on combustion.
It's Elementary: The Periodic Table Quiz
science.howstuffworks.com/periodic-table-quiz.htm
The periodic table of elements was an important turning point in the history of the chemistry. Take HowStuffWorks' periodic table quiz to learn more.