Your brain is 80% water.
525
At room temperature, the average air molecule travels at the speed of a rifle bullet.
55
Balsa wood is classified as a hard wood!
41
Each day, up to 150 species of life become extinct.
-23
Because heat expands the metal, the Eiffel Tower always leans away from the sun.
79
Pumice is the only rock that floats on water.
14