Hot water can freeze faster than cold water.
181
Rafflesia Arnoldii is the largest flower in the world and can grow as big as an umbrella.
42
Oak trees produce 2,200 acorns in a season, but each acorn only has a 1 in 10,000 chance of becoming an oak tree.
304
Pumice is the only rock that floats on water.
14
In the 60s, a scientist gave LSD to dolphins in an attempt to teach them English.
17
Cellophane is not made of plastic. It is made from a plant fiber, cellulose, which has been shredded and aged.
44
One barrel of petroleum holds 42 gallons.
20