Cellophane is not made of plastic. It is made from a plant fiber, cellulose, which has been shredded and aged.
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The earth is approx. 6,588,000,000,000,000,000 tons.
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If the chemical sodium is dropped into water it will immediately and violently explode.
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Neanderthal man had a brain capacity 100cc larger than modern man's.
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Stephen Hawking once tried to find potential time travellers by throwing a party and only sending out invitations after the party.
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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!
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For every gallon of sea water, you get more than a quarter pound of salt.
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A cesium atom in an atomic clock beats over nine billion times a second.
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