Cellophane is not made of plastic. It is made from a plant fiber, cellulose, which has been shredded and aged.
44
Balsa wood is classified as a hard wood!
41
The average temperature at 40,000 feet above sea level is -60 F.
56
Oxygen, carbon, hydrogen and nitrogen make up 90% of the human body.
118
The smell of freshly cut grass is actually a plant distress call.
31
Hot water can freeze faster than cold water.
181
Scientists have revived a flowering plant from a fruit stored away in permafrost by Arctic ground squirrel 32,000 years ago.
16
Airports that are at higher altitudes require a longer airstrip due to lower air density.
39