One third of the electricity produced on earth is used to power electric light bulbs!
75
If the chemical sodium is dropped into water it will immediately and violently explode.
67
Most dust particles in your house come from dead skin.
48
Sound travels fifteen times faster through steel than through air.
134
Scientists are learning from the 1700-year-old Lycurgus Cup, which changes colour thanks to nano particles.
0
Hot water can freeze faster than cold water.
181
Nylon is made from coal and petroleum.
42
Forensic scientists can determine a person's sex, age, and race by examining a single strand of hair.
101