Pure water (H2O) does not conduct electricity on its own.
46
Kissing actually has the biological purpose of passing on biological information and chemical signals to assess mating possibilities and status.
9
At room temperature, the average air molecule travels at the speed of a rifle bullet.
55
Sound travels about 4 times faster in water than in air.
408
One third of the electricity produced on earth is used to power electric light bulbs!
75
Scientists in Germany have developed a candy that doesn't cause cavities.
11
Stannous fluoride, which is the cavity fighter found in toothpaste is made from recycled tin.
65