A cubic yard of air weighs about 2 pounds at sea level.
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The smell of freshly cut grass is actually a plant distress call.
31
Rafflesia Arnoldii is the largest flower in the world and can grow as big as an umbrella.
42
Cold water weighs more than hot water.
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Cellophane is not made of plastic. It is made from a plant fiber, cellulose, which has been shredded and aged.
44
Only 12,000 years ago there was a species closely related to modern humans called Homo floresiensis that had been living on an Indonesian Island. They used fire and rather advanced tools, yet were only about 3 feet tall and weighed around 25kg.
15
Scientists have revived a flowering plant from a fruit stored away in permafrost by Arctic ground squirrel 32,000 years ago.
16
Most liquid laundry detergents are alive with living organisms that help to break down stains!
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