At room temperature, the average air molecule travels at the speed of a rifle bullet.
55
Forensic scientists can determine a person's sex, age, and race by examining a single strand of hair.
101
Cold water weighs more than hot water.
93
Balsa wood is classified as a hard wood!
41
In zero gravity, a candle's flame is round and blue.
16
Pure water (H2O) does not conduct electricity on its own.
46
Oak trees produce 2,200 acorns in a season, but each acorn only has a 1 in 10,000 chance of becoming an oak tree.
304