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What chemical elements are needed for plant growth?
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Certain chemical elements, including potassium, phosphorus and nitrogen, are needed by every plant. You can learn more about the chemical elements that are needed for plant growth from this article.
Can You ID These Great Cars for Autocrossing?
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What's more fun than an obstacle course? How about maneuvering through an elaborately planned track in a parking lot, set up with cones while trying to go as fast as possible in your very own car? Welcome to the exciting world of autocross! How many of these masters of autocross can you name?
It's Elementary: The Periodic Table Quiz
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The periodic table of elements was an important turning point in the history of the chemistry. Take HowStuffWorks' periodic table quiz to learn more.
A Kid-friendly Introduction to Magnets and Magnetism
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Magnetism is at work all around you. Even our Earth is a giant magnet!
Why Is an Asteroid Worth $10,000,000,000,000,000,000?
science.howstuffworks.com/psyche-16-asteroid.htm
A distant asteroid made mostly of iron is potentially worth $10,000 quadrillion, making it many times more valuable than the global economy.
What Do Forensic Scientists Do?
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Forensic lab techniques help investigators solve murders, hit-and-runs, arson cases and drug busts. Learn about forensic lab techniques and safety.
Which Colors Really Look Best on You?
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Nobody wants to look washed-out and sick because of the color of their clothing! Avoid a major fashion faux-pas with our couture color quiz, and find out what shades of the rainbow look best on you!
Which Three Colors Actually Look Best on You?
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Your skin tone is as unique as your personality, and there are certain color combos only you can truly pull off. Thinking about revamping your wardrobe? Before you do, take this quiz to find out which three colors actually look best on you.
Name That Chevy!
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Bet on the 'vette and holla for the Impala, there are a whole lot of Chevy vehicles out on the roads. With over 100 years of history, do you think you could possibly guess them all? This quiz can tell if you know a Chevelle!
How the Tesla Powerwall Works
science.howstuffworks.com/environmental/energy/tesla-powerwall.htm
There's no question that people are interested in solar energy. The problem has been how to store it. Could the much-hyped Powerwall home battery change that scenario?