If the chemical sodium is dropped into water it will immediately and violently explode.
67
Scientists are now able to grow 'beating' heart tissue in a lab!
162
A cubic yard of air weighs about 2 pounds at sea level.
31
Sound travels fifteen times faster through steel than through air.
134
At room temperature, the average air molecule travels at the speed of a rifle bullet.
55
For every gallon of sea water, you get more than a quarter pound of salt.
45
The only letter not appearing on the Periodic Table is the letter "J".
180
Blue eyes are a genetic mutation. Before the mutation occured, all humans had brown eyes.
89