Pumice is the only rock that floats on water.
14
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
Iron weighs more after it rusts.
68
The average home creates more pollution than does the average car.
33
Balsa wood is classified as a hard wood!
41
Scientists are learning from the 1700-year-old Lycurgus Cup, which changes colour thanks to nano particles.
0
Kissing actually has the biological purpose of passing on biological information and chemical signals to assess mating possibilities and status.
9
Aluminum used to be more valuable than gold!
84