جزئیات کتاب
فرمت
کیندل
صفحات
24
زبان
انگلیسی
منتشر شده
Jan 1, 2014
ناشر
The Child's World
ISBN-10
1631431323
ISBN-13
9781631431326
توضیحات
Readers learn how this simple machine makes it easier to keep objects locked together. By the end of the book, readers know the difference between complex and simple machines and how screws are used in everyday life to make work easier.