الوصف
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.
تفاصيل الكتاب
تنسيق
غلاف ورقي
صفحات
32 صفحات
لغة
الإنجليزية
منشور
سبتمبر 1, 2015
الناشر
Crabtree Classics
رقم ISBN-10
0778719170
رقم ISBN-13
9780778719175