Sound travels about 4 times faster in water than in air.
408
Diamonds can be shattered with a hammer.
-104
Kissing actually has the biological purpose of passing on biological information and chemical signals to assess mating possibilities and status.
9
A single speck of dust is half way in size between a subatomic particle and the Earth.
15
Stannous fluoride, which is the cavity fighter found in toothpaste is made from recycled tin.
65
The Manchineel Tree is so poisonous, rainwater dripping off it’s leaves will burn your skin.
17
Cellophane is not made of plastic. It is made from a plant fiber, cellulose, which has been shredded and aged.
44
Scientists concluded that the chicken came first, not the egg, because the protein which makes the egg shells is only produced by hens.
11