Aluminum used to be more valuable than gold!
84
Balsa wood is classified as a hard wood!
41
The smell of freshly cut grass is actually a plant distress call.
31
Iron weighs more after it rusts.
68
The only letter not appearing on the Periodic Table is the letter "J".
180
Nuclear power prevented an average of over 1.8 million deaths between 1971-2009 as a result of lower air pollution from reduced coal usage according to NASA.
5
The average temperature at 40,000 feet above sea level is -60 F.
56
Stannous fluoride, which is the cavity fighter found in toothpaste is made from recycled tin.
65