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• Correspondence to the Course of Study "3rd Year of Elementary School: Science A: Materials and Energy ・・・: How the Wind Works": Docodemo Experiment Without Power Supply! You can experience actions and results together! A wind changer is a device that creates wind by rotating a handle.
• If you replace the handle with three insertion ports with different gear ratios, there will be air flow.
• You can use a sailing wheel to compare how things move when you change the air volume.
• When children create their own power (wind power), they feel a deeper sense and understanding of the experiment.