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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Pumice is the only rock that floats on water.
14
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.
7
Pure water (H2O) does not conduct electricity on its own.
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There are more than 270 people cryogenically frozen in the hope that one day the technology will exist that can revive them and extend their lives.
13
A single speck of dust is half way in size between a subatomic particle and the Earth.
15
4.5 pounds of sunlight strike the Earth each day.
27
One third of the electricity produced on earth is used to power electric light bulbs!
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