For every gallon of sea water, you get more than a quarter pound of salt.
45
If you are locked in a completely sealed room, you will die of carbon dioxide poisoning first before you will die of oxygen deprivation.
117
A ball of glass will bounce higher than a ball made of rubber.
73
Sound travels fifteen times faster through steel than through air.
134
The only letter not appearing on the Periodic Table is the letter "J".
180
The earth is approx. 6,588,000,000,000,000,000 tons.
175