Oxygen, carbon, hydrogen and nitrogen make up 90% of the human body.
118
Every day, plants convert sunlight into energy equivalent to six times the entire power consumption of human civilization.
9
One cubic foot of gold weighs more than 1,200 pounds!
78
Each day, up to 150 species of life become extinct.
-23
The smell of freshly cut grass is actually a plant distress call.
31
There are more atoms in one teaspoon of water than there are teaspoons of water in the Atlantic Ocean.
13
Iron weighs more after it rusts.
68
Marie Curie, the Nobel prize winning scientist who discovered radium, died of radiation poisoning.
57