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Your search for "petroleum" returned 452 results
Top 10 Alternative Transportation Methods
science.howstuffworks.com/environmental/green-science/10-alternative-transportation-methods.htm
The automobile is one of the most important inventions of the past 150 years. This is not only because it provides convenient personal transport and great independence through mobility, but also because of the problems it can cause.
Comparing Strong Acids and Weak Acids
science.howstuffworks.com/strong-acids.htm
In the world of chemistry, understanding the difference between strong acids and weak acids is fundamental for both students and professionals alike. Strong acids are known for their ability to completely dissociate in water, making them a pivotal topic in chemical reactions and laboratory experiments.
The Ultimate Repairing a Small Engine Quiz
play.howstuffworks.com/quiz/repairing-small-engine-quiz
Many of our household tools and vehicles - like lawnmowers, chainsaws, outboard boats and snowmobiles - are powered by small engines. It's a good idea to have a working knowledge of how these systems work and what to do when they don't. Take this quiz and find out if you've got the skills to repair and maintain small engines!
Can You Guess the Famous Commercial From a Quote?
play.howstuffworks.com/quiz/can-you-guess-the-famous-commercial-from-a-quote
Do you know which cereal goes "Snap! Crackle! Pop!"? What about which coffee brand America runs on? If you're an expert on commercials, you'll find that this quiz is good to the last drop!
Unlocking the Power of Greek Fire: The Byzantine Empire's Secret Weapon
history.howstuffworks.com/world-history/greek-fire.htm
Uncover the secrets of Greek fire, ancient warfare's legendary weapon. Explore its history, composition, and deadly impact.
How far in advance should I check the weather forecast?
science.howstuffworks.com/nature/climate-weather/storms/check-weather.htm
If you check the weather regularly, you may have wondered how much good it does you. Learn when the best time to check weather in advance is.
Is premium gasoline really better for luxury vehicles?
auto.howstuffworks.com/premium-gas-luxury-vehicles.htm
Premium gasoline is often advised for luxury cars, but do you really need it? Learn whether premium gasoline really is better for luxury cars.
Do cows pollute as much as cars?
animals.howstuffworks.com/mammals/methane-cow.htm
Cow flatulence produces the greenhouse gas methane, which is linked to global warming. Find out how scientists are working to reduce cow flatulence in livestock.
How Concrete Roofs Work
home.howstuffworks.com/home-improvement/construction/materials/concrete-roofs.htm
Concrete roofs are exactly what they sound like: solid slabs of concrete capping the top of homes. How can concrete roofs protect you from big storms?
Top 5 Tips for Maintaining a Healthy Scalp
health.howstuffworks.com/skin-care/scalp-care/tips/5-tips-for-maintaining-a-healthy-scalp.htm
Maintaining a healthy scalp requires establishing a routine. Visit HowStuffWorks to learn about maintaining a healthy scalp.