Scientists aren't sure what color dinosaurs were.
312
In zero gravity, a candle's flame is round and blue.
16
One barrel of petroleum holds 42 gallons.
20
Pumice is the only rock that floats on water.
14
There are more atoms in one teaspoon of water than there are teaspoons of water in the Atlantic Ocean.
13
One 75-watt bulb gives more light than three 25-watt bulbs.
57
Most dust particles in your house are made from dead skin!
67
Kissing actually has the biological purpose of passing on biological information and chemical signals to assess mating possibilities and status.
9