The only letter not appearing on the Periodic Table is the letter "J".
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The Earth's atmosphere weighs about 5.5 quadrillion tons.
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The weight of a carat (200 milligrams), standard unit of measurement for gemstones, is based on the weight of the carob seed.
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Sound travels fifteen times faster through steel than through air.
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Balsa wood is classified as a hard wood!
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The inventor of the Super Soaker squirt gun was a NASA Scientist who also helped develop the Stealth Bomber and the Galileo mission to Jupiter.
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In the 1950s, the US government placed beer next to an atomic bomb blast to determine if it was still drinkable. The result: in the event of a nuclear war, beer is safe to drink!
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Cellophane is not made of plastic. It is made from a plant fiber, cellulose, which has been shredded and aged.
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