I wonder why
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6)
I wonder why mice are musical: and other questions about music
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7)
I wonder why pine trees have needles and other questions about forests
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8)
I wonder why there's a hole in the sky and other questions about the environment
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9)
I wonder why records are broken and other questions about amazing facts and figures
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10)
I wonder why horses wear shoes: and other questions about horses
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11)
I wonder why I sleep and other questions about my body
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24)
I wonder why leaves change color and other questions about plants
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26)
I wonder why pirates wore earrings: and other questions about piracy
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27)
I wonder why planes have wings: and other questions about transportation
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29)
The Sahara is cold at night, and other questions about deserts
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30)
I wonder why soap makes bubbles: and other questions about science
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32)
I wonder why snakes shed their skin: and other questions about reptiles
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