One cubic foot of gold weighs more than 1,200 pounds!
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The smell of freshly cut grass is actually a plant distress call.
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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.
51
Cold water weighs more than hot water.
93
One ragweed plant can release as many as one billion grains of pollen!
51
The hair of an adult man or woman can stretch 25 percent of its length without breaking.
116
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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