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科图分类法:
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I712.8/97 版次： |
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中图分类法:
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I712.8 版次： |
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著者:
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Manley, Erika S.. |
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题名:
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Wedges / / , |
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出版发行:
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出版地： Minneapolis, MN : 出版社： Jump!, Inc., 出版日期： c2019. |
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载体形态:
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24 p. : col. ill. ; 21 cm. |
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附注:
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"Bullfrog Books are published by Jump!" |
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内容提要:
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"In this book, readers will learn about one of the six simple machines as described by Renaissance scientists. Vibrant, full-color photos and carefully leveled text will engage young readers as they learn how wedges increase force to either separate objects or hold things together"-- |
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主题词:
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Wedges |
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主题词:
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Simple machines |
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索书号:
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I712.8/97 |