If the chemical sodium is dropped into water it will immediately and violently explode.
67
No matter how cold it gets, gasoline will not freeze.
107
If you are locked in a completely sealed room, you will die of carbon dioxide poisoning first before you will die of oxygen deprivation.
117
Cellophane is not made of plastic. It is made from a plant fiber, cellulose, which has been shredded and aged.
44
Brass doorknobs automatically disinfect themselves in about 8 hours.
18
A single speck of dust is half way in size between a subatomic particle and the Earth.
15
The hair of an adult man or woman can stretch 25 percent of its length without breaking.
116
A coal power station puts 100 times more radiation into the air than a nuclear power plant producing the same amount of energy.
7