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发表于2024-11-27
Drip! Drop! pdf epub mobi txt 電子書 下載 2024
It's getting dark. You flick a switch. The room lights up. Electricity made it happen. But how? Jojo and her zany dog, Willy, are back for their second book in this fun-filled introduction to electricity. Jgjo's lively explanations of the discovery of electricity and how it works and Nancy Tobin's colorful illustrations provide facts and fun. After learning the basic concepts, young scientists can construct their own simple light switch.
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Drip! Drop! pdf epub mobi txt 電子書 下載 2024