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How Food Works
science.howstuffworks.com/innovation/edible-innovations/food.htm
Ever wonder what, exactly, you are putting in your body when you eat? Would you like to know the real difference between a "fat" and a "carb"? Learn all about food and how your body uses it!
The Thirty Years' War Quiz
play.howstuffworks.com/quiz/the-thirty-years-war-quiz
The Thirty Year's War was among the most destructive and devastating wars in history. But just how much do you know about the conflict and its participants? Get ready to do battle against our challenging quiz to find out.
The Most Beautiful Countries in the World, Sorted by Region
science.howstuffworks.com/nature/most-beautiful-countries-in-the-world.htm
Any avid traveler knows there are far too many gorgeous landscapes and jaw-dropping views to make one all-encompassing list of the most beautiful countries in the world. We're lucky to have such a diverse world, and beauty is subjective.
Only a true fan of Avatar: The Last Airbender could answer these questions... Can you?
After reading Books 1-4, you're an expert on the Avatar... or are you? How much do you know about the characters and the plot that drives them forward? Show off your knowledge of the Avatar universe by taking this quiz!
Can You Identify These Venomous Snakes?
play.howstuffworks.com/quiz/50-out-55-people-cant-identify-these-venomous-snakes-can-you
Knowing sequences of colors and patterns can help you tell the difference between dangerous and benign snakes. Your life may depend on it! Take this quiz to see if you can identify these venomous snakes from a single image.
Can You Guess the Car Manufacturer From Just a Portion of the Car?
play.howstuffworks.com/quiz/can-you-guess-the-car-manufacturer-from-just-a-portion-of-the-car
Now you might know your cars, but can you identify the maker by just looking at a part or section of the vehicle? It's going to take all of your auto knowledge to pull this one off! Time to fend(er) for yourself!
How Plague Works
science.howstuffworks.com/life/cellular-microscopic/plague.htm
You may be familiar with the medieval "Black Plague," but did you know that bouts of plague still break out today? Find out what causes an outbreak, why plague still exists and how the plague has influenced history.
The Biofuel Quiz
play.howstuffworks.com/quiz/biofuel-quiz
What do vegetable oil, corn and salt water have in common? They're all potential fuel sources for our cars. See how much you know about the next generation of biofuels in our Biofuel Quiz.
How have NASA space helmets changed optics?
science.howstuffworks.com/innovation/nasa-inventions/nasa-space-helmets-changed-optics.htm
NASA space helmets are nifty devices that allow astronauts to operate in the hostile environment of space, but did you know that the technology behind them has also directly benefitted eyeballs here on Earth? Learn more about NASA and optics.
The Ultimate Investment Diversification Quiz
play.howstuffworks.com/quiz/investment-diversification-quiz
Your friends and associates may consider you an astute investor and they could be correct. Are you doing everything possible to maximize your return and to protect your assets? Determine how much you know about diversification by taking this quiz.