Most dust particles in your house come from dead skin.
48
Forensic scientists can determine a person's sex, age, and race by examining a single strand of hair.
101
No matter how cold it gets, gasoline will not freeze.
107
Scientists are now able to grow 'beating' heart tissue in a lab!
162
Iron weighs more after it rusts.
68
In zero gravity, a candle's flame is round and blue.
16
Approximately 70 percent of the earth is covered by water. Only 1 percent of this water is drinkable.
65