Description
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.
Détails du livre
Format
Relié
Pages
32 pages
Langue
Anglais
Publié
Sep 1, 2015
Éditeur
Crabtree Classics
ISBN-10
0778718905
ISBN-13
9780778718901