One third of the electricity produced on earth is used to power electric light bulbs!
75
Iron weighs more after it rusts.
68
If the chemical sodium is dropped into water it will immediately and violently explode.
67
Scientists have revived a flowering plant from a fruit stored away in permafrost by Arctic ground squirrel 32,000 years ago.
16
Stephen Hawking once tried to find potential time travellers by throwing a party and only sending out invitations after the party.
17
Forensic scientists can determine a person's sex, age, and race by examining a single strand of hair.
101
There are more atoms in one teaspoon of water than there are teaspoons of water in the Atlantic Ocean.
13