The bark of an older redwood tree is fireproof.
65
The sun is 330,330 times larger than the earth.
75
Blue eyes are a genetic mutation. Before the mutation occured, all humans had brown eyes.
89
Some toothpastes and deodorants contain the same chemicals found in antifreeze.
38
Iron weighs more after it rusts.
68
Stannous fluoride, which is the cavity fighter found in toothpaste is made from recycled tin.
65
Pure water (H2O) does not conduct electricity on its own.
46
Scientists have developed a microparticle filled with oxygen that can be injected into the blood stream, enabling us to live without breathing.
21