Balsa wood is classified as a hard wood!
41
The banana plant cannot reproduce itself. It can be propagated only by the hand of man.
155
The earth is approx. 6,588,000,000,000,000,000 tons.
175
The most expensive material on the planet is antimatter - worth $62.5 trillion per gram.
18
Scientists are learning from the 1700-year-old Lycurgus Cup, which changes colour thanks to nano particles.
0
For every gallon of sea water, you get more than a quarter pound of salt.
45
The bark of an older redwood tree is fireproof.
65
Diamonds can be shattered with a hammer.
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