Cold water weighs more than hot water.
93
Sound travels about 4 times faster in water than in air.
408
In zero gravity, a candle's flame is round and blue.
16
Kissing actually has the biological purpose of passing on biological information and chemical signals to assess mating possibilities and status.
9
German chemists made a replica of a trophy the size of one molecule.
68
For every gallon of sea water, you get more than a quarter pound of salt.
45
The bark of an older redwood tree is fireproof.
65