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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If the chemical sodium is dropped into water it will immediately and violently explode.
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Indoor pollution is 10 times more toxic than outdoor pollution.
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Hot water can freeze faster than cold water.
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Iron weighs more after it rusts.
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According to scientists, the color of the cup that we're drinking from can alter our perception of the actual taste of the drink.
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Scientists have revived a flowering plant from a fruit stored away in permafrost by Arctic ground squirrel 32,000 years ago.
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A single speck of dust is half way in size between a subatomic particle and the Earth.
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