تفاصيل الكتاب
تنسيق
كيندل
صفحات
24
لغة
الإنجليزية
منشور
Jan 1, 2014
الناشر
The Child's World
رقم ISBN-10
1631431331
رقم ISBN-13
9781631431333
الوصف
Readers learn how this simple machine makes it easier to split things apart or stop them from moving. They learn how thicker wedges need more force to split something apart than thinner wedges. By the end of the book, readers know the difference between complex and simple machines and how wedges are used in everyday life to make work easier.