Iron weighs more after it rusts.
16
The only letter not appearing on the Periodic Table is the letter "J".
180
A 'jiffy' is an actual unit of time for 1/100th of a second!
66
It takes a photon 170,000 years to travel from the core of the Sun to the surface, but only 8 minutes to travel the rest of the way to Earth.
6
A coal power station puts 100 times more radiation into the air than a nuclear power plant producing the same amount of energy.
7
One ragweed plant can release as many as one billion grains of pollen!
51
Oak trees produce 2,200 acorns in a season, but each acorn only has a 1 in 10,000 chance of becoming an oak tree.
304