If the chemical sodium is dropped into water it will immediately and violently explode.
67
Hot water can freeze faster than cold water.
181
Nylon is made from coal and petroleum.
42
Pumice is the only rock that floats on water.
14
One gallon of used motor oil can ruin approximately one million gallons of fresh water!
71
Stephen Hawking once tried to find potential time travellers by throwing a party and only sending out invitations after the party.
17
Each day is longer than the previous on by 0.00000002 seconds which is 13 seconds each century!
116
0.3% of solar energy from the Sahara is enough to power the whole of Europe.
310