Pumice is the only rock that floats on water.
14
Blue eyes are a genetic mutation. Before the mutation occured, all humans had brown eyes.
89
Cold water weighs more than hot water.
93
Dr.Jonas Salk, the man who came up with the cure for polio, didn’t patent the drug. This made the drug more affordable to the general public, and he lost out an an estimated $7 billion dollars for himself.
41
Balsa wood is classified as a hard wood!
41
All Humans Are 99.9% Genetically Identical and 98.4% of human genes are the same as the genes of a chimpanzee.
51
Iron weighs more after it rusts.
16
The Manchineel Tree is so poisonous, rainwater dripping off it’s leaves will burn your skin.
17