During photosynthesis, plants emit light humans can’t see, but NASA can see that light from space - and they've even made maps of it!
21
Stannous fluoride, which is the cavity fighter found in toothpaste is made from recycled tin.
65
Aluminum used to be more valuable than gold!
84
A cesium atom in an atomic clock beats over nine billion times a second.
43
For every gallon of sea water, you get more than a quarter pound of salt.
45
The force of a suction cup is calculated using F=AP.
15
The average home creates more pollution than does the average car.
33
Nylon is made from coal and petroleum.
42