A cubic yard of air weighs about 2 pounds at sea level.
31
If the chemical sodium is dropped into water it will immediately and violently explode.
67
MIT has developed a camera that captures the speed of light at a trillion frames per second.
20
One ragweed plant can release as many as one billion grains of pollen!
51
There are more atoms in one teaspoon of water than there are teaspoons of water in the Atlantic Ocean.
13
Each day, up to 150 species of life become extinct.
-23
Balsa wood is classified as a hard wood!
41
The hair of an adult man or woman can stretch 25 percent of its length without breaking.
116