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What Brings a Tear to Your Eye?
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Where Is the Eye of the Hurricane?
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How Can Math Help You Cook?
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How Do You Use a Laser for Eye Surgery?
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How Can You Get a Bird’s Eye View?
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Have You Ever Been to the Big Apple?
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What Is a Gargoyle?
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Why Do Your Pupils Get Bigger in the Dark?
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What’s the Difference Between a Solar and a Lunar Eclipse?
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Why Do You Blink?
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What Is El Niño?
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Where Do Red Eyes Come From?
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Why Does Food Make You Gain Weight?
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What Determines the Color of Your Eyes?
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How Do Contact Lenses Work?
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Do You Know Who To Call in an Emergency?
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Do You Sudoku?
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What Is the Smallest Thing You Can See?
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Why Do Some People Need Glasses?
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How Long Can Your Fingernails Grow?