Cellophane is not made of plastic. It is made from a plant fiber, cellulose, which has been shredded and aged.
44
Some toothpastes and deodorants contain the same chemicals found in antifreeze.
38
The smell of freshly cut grass is actually a plant distress call.
31
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
Scientists at the Zhejiang University in China have developed an ultra-light material known as carbon aerogel.
3
Iron weighs more after it rusts.
68
Nylon is made from coal and petroleum.
42
Indoor pollution is 10 times more toxic than outdoor pollution.
62