Sound travels about 4 times faster in water than in air.
408
Cellophane is not made of plastic. It is made from a plant fiber, cellulose, which has been shredded and aged.
44
Scientists in Germany have developed a candy that doesn't cause cavities.
11
Out of all the senses, smell is most closely linked to memory.
146
One cubic foot of gold weighs more than 1,200 pounds!
78
In the 60s, a scientist gave LSD to dolphins in an attempt to teach them English.
17
One ragweed plant can release as many as one billion grains of pollen!
51
In zero gravity, a candle's flame is round and blue.
16