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How the Scientific Method Works
science.howstuffworks.com/innovation/scientific-experiments/scientific-method.htm
The scientific method is something that all of us use almost all of the time. Learn more about the scientific method and the steps of the scientific method.
Will we soon be extinct?
science.howstuffworks.com/life/evolution/mass-extinction.htm
A mass extinction on Earth is long overdue, according to population ecologists. Find out what Earth's fossil record may be telling us about our future.
This Physics Quiz Is Really Hard, So We'll Be Impressed If You Get Even 10 Right
How will you REACT to this quiz? We're bringing in the big brains of physics to see if we can stump you. Do you have what it takes to pass without cheating?
Early Humans Mated With Inbred Neanderthals — at a Cost
science.howstuffworks.com/life/evolution/early-humans-mated-inbred-neanderthals-a-cost.htm
Neanderthals may be long gone, but their genetic footprint lives on - in us.
The Basic Astronomy quiz
play.howstuffworks.com/quiz/the-basic-astronomy-quiz
The night sky has fascinated humans throughout history. Even if you're not a science buff in general, we're willing to bet you know a thing or two about astronomy yourself. Find out just how much with our quiz!
Where did the tomato come from?
recipes.howstuffworks.com/where-did-the-tomato-come-from.htm
Where did the tomato come from? Visit TLC Cooking to learn where the tomato came from.
Will you die if you never sleep?
health.howstuffworks.com/mental-health/sleep/basics/die-if-never-sleep.htm
Sleep deprivation can have many side effects, but is death one of them? Find out if you can die if you never sleep at HowStuffWorks.
Do Coyotes and Badgers Work Together to Find Food?
animals.howstuffworks.com/animal-facts/coyotes-badgers-find-food.htm
Coyotes and badgers may be unlikely hunting allies, but research shows that these two work together to snare food. How do coyotes and badgers work together?
How tall can a tree grow?
science.howstuffworks.com/life/botany/tree-grow.htm
Can a tree grow and grow? Or can a tree grow only to the point that water transport limits it? Learn more about tree growth and the tallest trees.
Why do humans walk on two legs?
animals.howstuffworks.com/mammals/bipedalism.htm
Bipedalism was one of the first features to develop in our human ancestors. Is bipedalism better than being on all fours? Read more about bipedalism.