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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Airports that are at higher altitudes require a longer airstrip due to lower air density.
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The weight of a carat (200 milligrams), standard unit of measurement for gemstones, is based on the weight of the carob seed.
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Nylon is made from coal and petroleum.
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Pure water (H2O) does not conduct electricity on its own.
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Scientists at the Zhejiang University in China have developed an ultra-light material known as carbon aerogel.
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A coal power station puts 100 times more radiation into the air than a nuclear power plant producing the same amount of energy.
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Scientists aren't sure what color dinosaurs were.
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