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Serpent Mound, Ohio: Inside the Archaeological Mystery
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The curves of the Serpent Mound, Ohio state's massive and mysterious geological wonder, line up with the sun during equinoxes and solstices.
2010 in Pictures
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Take a look at 2010 pictures and see the top stories and events of the year. See how much you remember about 2010 with 2010 pictures.
How Fossils Work
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Fossils can tell us how life on Earth has evolved over time and also how the climate has changed. Find out what fossils are and how fossils formed.
The Most Dangerous Volcano in the World (and 9 Scary Others)
science.howstuffworks.com/nature/natural-disasters/most-dangerous-volcano-in-the-world.htm
Volcanoes are some of Earth’s most awe-inspiring features — but also among its deadliest. When asking which is the most dangerous volcano in the world, scientists consider not just eruption history but also population density, eruption style and potential global effects.
How Rain Barrels Work
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Rain barrels are containers designed to trap and store rainwater. Learn more about rain barrels and if one is right for you.
How Wetlands Work
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Wetlands act like sponges, soaking up extra water during floods. They filter water as it runs to our rivers and streams. Find out what else wetlands do.
10 Surprising Facts About Astronaut Training
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NASA astronauts have to undergo serious training before becoming approved for a trip to space. But some of that training is certainly not what you'd expect.
10 Times It Has Rained Something Other Than Water
Frogs! Fish! Birds! A surprising number of things have rained down from the sky besides water. But how?
10 Science Questions You Should Really Know How to Answer
science.howstuffworks.com/innovation/science-questions/10-science-questions-you-should-know.htm
Why is the sky blue? What's relativity all about? If you're thinking, "something to do with light and physics and stuff," we have some short explanations for you.
How Wildfires Work
science.howstuffworks.com/nature/natural-disasters/wildfire.htm
Wildfires burn about five million acres in the U.S. every year. Learn about the causes of wildfires, how wildfires behave and how firefighters fight them.