Iron weighs more after it rusts.
16
A ball of glass will bounce higher than a ball made of rubber.
73
In Arizona, a solar wind energy tower has been proposed that would generate as much energy as the Hoover Dam.
5
Some toothpastes and deodorants contain the same chemicals found in antifreeze.
38
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
Scientists are now able to grow 'beating' heart tissue in a lab!
162
A 'jiffy' is an actual unit of time for 1/100th of a second!
66
