تفاصيل الكتاب
تنسيق
كيندل
صفحات
24
لغة
الإنجليزية
منشور
Jan 1, 2014
الناشر
The Child's World
رقم ISBN-10
1631431404
رقم ISBN-13
9781631431401
الوصف
In this book, readers learn what gravity is and how it impacts weight. They learn about the US customary system and the metric system, where each is used, and the units of measurement in each system. Readers also learn about balances, scales, and estimating weights.