未分類

• 

  Seven continents and four major ocea...

• 

  Six continents and three major ocean...

• 

  Three states of matter

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  Metamorphosis

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  The human skeleton

• 

  Magnetism

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  The four forces of flight

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  Airfoil

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  Sensu (Folding fan)

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  Uchiwa (Fan)

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  Soba

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  Udon