Sound travels about 4 times faster in water than in air.
408
Iron weighs more after it rusts.
68
The only letter not appearing on the Periodic Table is the letter "J".
180
Each day, up to 150 species of life become extinct.
-23
Scientists in Germany have developed a candy that doesn't cause cavities.
11
4.5 pounds of sunlight strike the Earth each day.
27
According to studies, men change their minds two to three times more often than women.
72
Most dust particles in your house come from dead skin.
48