Curious Kids: Why do tears come out of our eyes when we cry?

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Whether we’re happy or sad, it doesn’t take much to turn on the waterworks. But how and why do humans cry?
Curious Kids: Why do tears come out of our eyes when we cry?
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Curious Kids: Why do tears come out of our eyes when we cry?
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Curious Kids: Why do tears come out of our eyes when we cry?
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Curious Kids: Why do tears come out of our eyes when we cry?
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Curious Kids: Why do tears come out of our eyes when we cry?
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Curious Kids: Why do tears come out of our eyes when we cry?
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Curious Kids: Why do tears come out of our eyes when we cry?
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Curious Kids: Why do tears come out of our eyes when we cry?
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Curious Kids: Why do tears come out of our eyes when we cry?
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Curious Kids: Why do tears come out of our eyes when we cry?
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Curious Kids: Why do tears come out of our eyes when we cry?
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Curious Kids: Why do tears come out of our eyes when we cry?
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Curious Kids: Why do tears come out of our eyes when we cry?
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