The earth is approx. 6,588,000,000,000,000,000 tons.
175
Cellophane is not made of plastic. It is made from a plant fiber, cellulose, which has been shredded and aged.
44
Cold water weighs more than hot water.
93
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
Sound at the right vibration can bore holes through a solid object.
134
Each day is longer than the previous on by 0.00000002 seconds which is 13 seconds each century!
116
Stannous fluoride, which is the cavity fighter found in toothpaste is made from recycled tin.
65