Oxygen, carbon, hydrogen and nitrogen make up 90% of the human body.
118
If the chemical sodium is dropped into water it will immediately and violently explode.
67
Columbia University has developed an artificial tree that passively soaks up carbon dioxide from the air using "leaves" that are 1,000 times more efficient than true leaves that use photosynthesis.
15
One cubic foot of gold weighs more than 1,200 pounds!
78
If you blowtorch Pepto-Bismol, you would get a hunk of metal.
114
Cold water weighs more than hot water.
93