Iron weighs more after it rusts.
16
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
The inventor of the Super Soaker squirt gun was a NASA Scientist who also helped develop the Stealth Bomber and the Galileo mission to Jupiter.
7
Pumice is the only rock that floats on water.
14
German chemists made a replica of a trophy the size of one molecule.
68
The force of a suction cup is calculated using F=AP.
15