Aluminum used to be more valuable than gold!
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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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The average temperature at 40,000 feet above sea level is -60 F.
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The hair of an adult man or woman can stretch 25 percent of its length without breaking.
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Pumice is the only rock that floats on water.
14
Iron weighs more after it rusts.
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4.5 pounds of sunlight strike the Earth each day.
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The Manchineel Tree is so poisonous, rainwater dripping off it’s leaves will burn your skin.
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