Cold water weighs more than hot water.
93
The earth is approx. 6,588,000,000,000,000,000 tons.
175
Most liquid laundry detergents are alive with living organisms that help to break down stains!
88
German chemists made a replica of a trophy the size of one molecule.
68
Indoor pollution is 10 times more toxic than outdoor pollution.
62
Marie Curie, the Nobel prize winning scientist who discovered radium, died of radiation poisoning.
57
It takes a photon 170,000 years to travel from the core of the Sun to the surface, but only 8 minutes to travel the rest of the way to Earth.
6
Stephen Hawking once tried to find potential time travellers by throwing a party and only sending out invitations after the party.
17