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 bark of an older redwood tree is fireproof.
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Most liquid laundry detergents are alive with living organisms that help to break down stains!
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Airports that are at higher altitudes require a longer airstrip due to lower air density.
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A cubic yard of air weighs about 2 pounds at sea level.
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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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Sound at the right vibration can bore holes through a solid object.
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The gas that gives rotten eggs their distinctive foul smell may slow ageing and block damaging chemical reactions inside cells, according to scientists in China.
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