Balsa wood is classified as a hard wood!
41
A ball of glass will bounce higher than a ball made of rubber.
73
Stannous fluoride, which is the cavity fighter found in toothpaste is made from recycled tin.
65
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
The banana plant cannot reproduce itself. It can be propagated only by the hand of man.
155
Most liquid laundry detergents are alive with living organisms that help to break down stains!
88
0.3% of solar energy from the Sahara is enough to power the whole of Europe.
310
Diamonds can be shattered with a hammer.
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