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How to Volunteer for the U.S. Geological Survey
money.howstuffworks.com/economics/volunteer/opportunities/volunteer-us-geological-survey.htm
The U.S. Geological Survey offers opportunities to volunteers interested in natural science. Read about volunteer ideas through the U.S. Geological Survey.
Tree Pictures
home.howstuffworks.com/tree-pictures.htm
These tree pictures will allow you to stroll through the world of walnuts, maples, redwoods and more. Check out these tree pictures at HowStuffWorks.
Who designed and built the first hybrid car?
auto.howstuffworks.com/fuel-efficiency/hybrid-technology/first-hybrid-car.htm
The first hybrid car was built much earlier than you might expect. Read up on the history of the first hybrid car models in this article.
How Triscuits Work
recipes.howstuffworks.com/how-triscuits-work.htm
The Triscuit cracker is a delicious snack food that is also packed with fiber. Learn how Triscuits work at HowStuffWorks.
How Stutz Cars Work
auto.howstuffworks.com/stutz-cars.htm
Early Stutz cars relied heavily on their racing image, but eventually evolved into highly sought-after consumer cars. Find out how.
Did climate change create a mysterious civilization 5,000 years ago?
science.howstuffworks.com/environmental/green-science/climate-change-civilization.htm
Climate change can effect civilization, a phenomenon demonstrated by the mound builders of Peru. Learn how climate change can effect civilization.
Why do cougars scream?
animals.howstuffworks.com/mammals/cougar-scream.htm
Cougars scream during mating season to attract the opposite sex. Learn how cougars scream and why humans don't hear these cougar screams too often.
What's the best way to keep pests out of my home?
home.howstuffworks.com/home-improvement/repair/home-pest-control.htm
Home pest control isn't always chemical agents that exterminators spray -- there are green alternatives. Read about home pest control for your home.
Which is greener, bagging your grass or leaving your clippings there?
home.howstuffworks.com/mulch-vs-bag-grass.htm
Bagging your grass is not a bright idea. All you're doing it filling landfills. Learn why bagging your grass is harmful for the environment.
What Is Pi?
science.howstuffworks.com/math-concepts/pi.htm
Whether the circle is as big as planet Mars or as small as a tennis ball, the ratio of its circumference divided by its diameter will always equal pi (3.14). But why?