Most dust particles in your house are made from dead skin!
67
There are more atoms in one teaspoon of water than there are teaspoons of water in the Atlantic Ocean.
13
Cellophane is not made of plastic. It is made from a plant fiber, cellulose, which has been shredded and aged.
44
Pure water (H2O) does not conduct electricity on its own.
46
Diamonds can be shattered with a hammer.
-104
No matter how cold it gets, gasoline will not freeze.
107
When you walk down a steep hill, the pressure on your knees is equal to three times your body weight.
199
Oxygen, carbon, hydrogen and nitrogen make up 90% of the human body.
118