SCIENCE
Holderness, Jackie

Why Does a Battery Make It Go?

(4) K-3 How? What? Why? series. In each of these series books, four cartoon kids examine questions (How do mirrors work? What are echoes?) and suggest possible explanations. Sequenced experiments test the hypotheses and offer brief explanations; some related questions are answered at the back of each book. It's accurate science, but by not employing a scientific vocabulary, some explanations are simplistic. Ind. [Review covers these How? What? Why? titles: What Is a Shadow?, Why Does a Battery Make It Go?, How Does a Trumpet Work?, and What Makes It Swing?.]

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