The Earth's atmosphere weighs about 5.5 quadrillion tons.
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The only letter not appearing on the Periodic Table is the letter "J".
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4.5 pounds of sunlight strike the Earth each day.
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All Humans Are 99.9% Genetically Identical and 98.4% of human genes are the same as the genes of a chimpanzee.
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Oak trees produce 2,200 acorns in a season, but each acorn only has a 1 in 10,000 chance of becoming an oak tree.
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Iron weighs more after it rusts.
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Scientists have developed a microparticle filled with oxygen that can be injected into the blood stream, enabling us to live without breathing.
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