Scientists aren't sure what color dinosaurs were.
312
Oxygen, carbon, hydrogen and nitrogen make up 90% of the human body.
118
Diamonds can be shattered with a hammer.
-104
Nylon is made from coal and petroleum.
42
Hot water can freeze faster than cold water.
181
Cellophane is not made of plastic. It is made from a plant fiber, cellulose, which has been shredded and aged.
44
Scientists at the Zhejiang University in China have developed an ultra-light material known as carbon aerogel.
3