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Springs (How Toys Work)

Sian Smith 著

出版社:Heinemann

出版时间:2012-08

ISBN:9781432965839

词汇量:145

页数:24

类别:

虚构:非虚构

开本:

阅读年龄:阅读年龄 4-5岁 (50.0%), 5-6岁 (50.0%)

作者简介

内容简介

Each book in this series focuses on a type of simple mechanism and examines how it is used to make different toys work. This book examines springs and uses simple language and labeled photographs to explain the scientific principles behind their use.

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