Why Do Fish Have Scales?
Why Do Fish Have Scales? Most fish are covered with a layer of flat scales, which overlap each other like the shingles on a roof. The hard scales form a protective...
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Why Does an Ice Cube Float?
Why Does an Ice Cube Float? Ice cube floats because it is lighter than water. When water freezes, it increases its volume (expands) by about one-tenth. When 10 quarts...
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Why Are Dimes Smaller than Pennies?
Dimes are smaller than pennies because the coins’ sizes had to be different in order to match weights and values as the same weight of each metal was worth a...
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Could Man Made Satellites Cause an Eclipse?
Could Man Made Satellites Cause an Eclipse? The planets and the moons have long, tapering shadows pointing away from the sun and the biggest of them have the biggest...
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What Are Geodes and How Do They Form?
What Are Geodes and How Do They Form? Geodes are spherical rocks that contain hollow cavities lined with crystals. The name geode comes from the Greek word Geoides,...
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