説明
Leo teaches his cat Pallas all about simple machines by applying his knowledge of science to their stone age world. Engaging illustrations and stories provide a fun introduction to science concepts, including wheel and axles, levers, pulleys, wedges, screws, and more. Information boxes accompany each story to explore real applications of simple machines in the natural and designed world.
本の詳細
形式
ハードカバー
ページ数
32ページ
言語
英語
公開されました
Sep 1, 2015
出版社
Crabtree Classics
ISBN-10
0778718905
ISBN-13
9780778718901