Weight is how heavy something or someone is. By measuring weight, people can tell in pounds and grams who has the heaviest backpack and the lightest lunch. Learn about the tools needed to measure how heavy things are in "Weight", an ALL ABOUT MEASURING book. Each book in this series helps children learn basic measuring concepts. Simple, engaging text and colorful photos help students gain a better understanding of measurement fundamentals and encourage a love of reading. Each AV2 media enhanced book is a unique combination of a printed book and exciting online content that brings the book to life. Readers can access embedded weblinks, audio and video clips, activities and other features, such as slideshow, matching work activity, and quiz."--