Janice Vancleave’s Electricity: Mind-Boggling Experiments You Can Turn into Science Fair Projects

Janice Vancleave’s Electricity: Mind-Boggling Experiments You Can Turn into Science Fair Projects
定價：558 元
NT $ 558
 

內容簡介

Describes twenty simple experiments involving eletromagnets, electric current, fuses, resistance, series and parallel circuits, and batteries
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    $558