During photosynthesis, plants emit light humans can’t see, but NASA can see that light from space - and they've even made maps of it!
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The average home creates more pollution than does the average car.
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Sound travels about 4 times faster in water than in air.
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Nylon is made from coal and petroleum.
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The average temperature at 40,000 feet above sea level is -60 F.
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Scientists are learning from the 1700-year-old Lycurgus Cup, which changes colour thanks to nano particles.
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In the 1950s, the US government placed beer next to an atomic bomb blast to determine if it was still drinkable. The result: in the event of a nuclear war, beer is safe to drink!
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