Louisiana is the only state that grows in land area every year (Due to alluvial deposits from the Mississippi River).
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The state with the longest coastline in the Continental U.S. is Michigan.
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Due to gravitational effects, you weigh slightly less when the moon is directly overhead.
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It takes a drop of ocean water more than 1,000 years to circulate around the world.
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An earthquake on Dec. 16, 1811 caused parts of the Mississippi River to flow backwards.
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A volcano has enough power to shoot ash as high as 50 km into the atmosphere.
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Every year, Alaska has about 5,000 earthquakes.
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The 'King Ranch' in Texas is bigger than the state of Rhode Island.
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