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Some scientific concepts seem like a mystery, but this innovative volume is sure to shed light on even the most puzzling experiments. Simple step-by-step instructions and closely-correlated illustrations make it easy for readers of many ages and levels to follow along with each activity. A simple ranking system also allows readers to choose the experiments that best correspond to their skill level. Attention-grabbing sidebars and fact boxes provide further insight and help reinforce key elementary science curricula.
Some scientific concepts seem like a mystery, but this innovative volume is sure to shed light on even the most puzzling experiments. Simple step-by-step instructions and closely-correlated illustrations make it easy for readers of many ages and levels to follow along with each activity. A simple...
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智能手机和平板电脑
笔记本电脑和台式机
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