Iron weighs more after it rusts.
16
Diamonds can be shattered with a hammer.
-104
All Humans Are 99.9% Genetically Identical and 98.4% of human genes are the same as the genes of a chimpanzee.
51
The smell of freshly cut grass is actually a plant distress call.
31
The earth is approx. 6,588,000,000,000,000,000 tons.
175
Forensic scientists can determine a person's sex, age, and race by examining a single strand of hair.
101
Approximately 70 percent of the earth is covered by water. Only 1 percent of this water is drinkable.
65
The only letter not appearing on the Periodic Table is the letter "J".
180