One cubic foot of gold weighs more than 1,200 pounds!
78
Sound travels about 4 times faster in water than in air.
408
The Manchineel Tree is so poisonous, rainwater dripping off it’s leaves will burn your skin.
17
Stannous fluoride, which is the cavity fighter found in toothpaste is made from recycled tin.
65
Optical illusions occur when what the eyes see conflicts with what the brain expects.
75
Each day, up to 150 species of life become extinct.
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Indoor pollution is 10 times more toxic than outdoor pollution.
62
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.
5