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How Bug Spray Works
home.howstuffworks.com/home-improvement/household-hints-tips/insect-control/bug-spray.htm
Our world is full of insects, and our first response to seeing one is usually to reach for a can of spray to zap it. Is this good idea? What's in your typical can of bug spray? And, could it harm you, too?
How Evolution Works
science.howstuffworks.com/life/evolution/evolution.htm
Evolution is fascinating because it attempts to answer one of the most basic human questions: Where did life, and human beings, come from? The theory of evolution proposes that life and humans arose through a natural process.
What Is the Oldest City in America? A Look at the Top 11
history.howstuffworks.com/american-history/oldest-city-in-america.htm
Embarking on a journey through the United States' historical landscape to learn about the oldest city in America uncovers a rich mosaic of stories that trace back to a time before even the British arrived and settled on the land.
How Your Appendix Works
health.howstuffworks.com/human-body/parts/appendix.htm
Does your appendix serve a purpose? Learn what some say your appendix does, what your appendix looks like and what can go wrong with an appendix.
How to Volunteer at the African Scientific Research Institute
money.howstuffworks.com/economics/volunteer/opportunities/volunteer-african-scientific-research.htm
The African Scientific Research Institute excavates and recreates the histories of communities founded by former slaves. Read about the work of the ASRI.
How Whaling Works
science.howstuffworks.com/environmental/conservation/issues/whaling.htm
Whaling has been practiced for several centuries. Learn about whaling, and find out what is being done to stop whaling.
What Does 'BPA Free' Mean and Why Does It Matter?
science.howstuffworks.com/environmental/green-science/bpa.htm
The chemical BPA (bisphenol-a) often found in consumer goods, may be linked to human health problems. Learn more about BPA in polycarbonate plastics.
What's a walk score?
science.howstuffworks.com/environmental/green-science/walk-score.htm
A walk score is a measure of your neighborhood's walkability. Learn about what a walk score is and find out how the Web site Walk Score rates your walkshed.
13 People with Extra Body Parts
health.howstuffworks.com/human-body/parts/13-people-with-extra-body-parts.htm
Extra body parts can occur more often than people might think. Find out more about 13 people who were born with an extra body part.
Why Are You So Tired? 5 Most Common Sleep Mistakes
health.howstuffworks.com/mental-health/sleep/disorders/so-tired-5-most-common-sleep-mistakes.htm
HowStuffWorks looks at the most common sleep mistakes and how to fix them.