Indoor pollution is 10 times more toxic than outdoor pollution.
62
Oxygen, carbon, hydrogen and nitrogen make up 90% of the human body.
118
Pure water (H2O) does not conduct electricity on its own.
46
At room temperature, the average air molecule travels at the speed of a rifle bullet.
55
One cubic foot of gold weighs more than 1,200 pounds!
78
The force of a suction cup is calculated using F=AP.
15
The only letter not appearing on the Periodic Table is the letter "J".
180
Airports that are at higher altitudes require a longer airstrip due to lower air density.
39