
在這本書中描寫了介紹了可以利用磁鐵及電池完成的勞作,清楚的步驟,可以讓孩子及老師輕鬆地學會!適合老師使用或是7歲以上兒童閱讀。This introduction to basic scientific principles gives explanations on how to make things that go, things that glow, buzz or flash. It features step-by-step instructions on how to make lanterns, pick-up trucks and simple transmitters, accompanied by photographs of the creation as a guide. |