Beskrivning
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.
Bokdetaljer
Format
Inbunden
Sidor
32 sidor
Språk
Engelska
Publicerad
Sep 1, 2015
Förlag
Crabtree Classics
ISBN-10
0778718905
ISBN-13
9780778718901