Every day, plants convert sunlight into energy equivalent to six times the entire power consumption of human civilization.
9
Balsa wood is classified as a hard wood!
41
German chemists made a replica of a trophy the size of one molecule.
68
Aluminum used to be more valuable than gold!
84
Hot water can freeze faster than cold water.
181
Pumice is the only rock that floats on water.
14
A cubic yard of air weighs about 2 pounds at sea level.
31
One cubic foot of gold weighs more than 1,200 pounds!
78