The Earth's atmosphere weighs about 5.5 quadrillion tons.
108
The left ear is more responsive to words of love and emotion whispered into it than the right.
40
Balsa wood is classified as a hard wood!
41
A 'jiffy' is an actual unit of time for 1/100th of a second!
66
Each day is longer than the previous on by 0.00000002 seconds which is 13 seconds each century!
116
A single speck of dust is half way in size between a subatomic particle and the Earth.
15
One barrel of petroleum holds 42 gallons.
20
Scientists aren't sure what color dinosaurs were.
312