Pumice is the only rock that floats on water.
14
In the 1950s, the US government placed beer next to an atomic bomb blast to determine if it was still drinkable. The result: in the event of a nuclear war, beer is safe to drink!
16
German chemists made a replica of a trophy the size of one molecule.
68
Iron weighs more after it rusts.
68
One cubic foot of gold weighs more than 1,200 pounds!
78
Hot water can freeze faster than cold water.
181