Iron weighs more after it rusts.
68
Indoor pollution is 10 times more toxic than outdoor pollution.
62
If you blowtorch Pepto-Bismol, you would get a hunk of metal.
114
The use of emoticons affects our corresponding brain areas and can actually trigger emotions.
21
Oxygen, carbon, hydrogen and nitrogen make up 90% of the human body.
118
Hot water can freeze faster than cold water.
181
One cubic foot of gold weighs more than 1,200 pounds!
78
Cold water weighs more than hot water.
93