Pulleys help make up some of the most complicated machinery, from car engines to cranes. See how pulleys lift and move heavy things, how pulleys work together, and the different kinds of… More →

Screws are everywhere! From the cap on a bottle to a farmer's combine, screws help us lift, grip, squeeze, and move. Come inside the book to learn all about this fascinating simple machine. More →

Simple machines are all around children: bicycle wheels, doorstops, the seesaw on the playground. This captivating series from Crabtree opens young readers' eyes to the essential everyday… More →

Wedges are used to separate, lift, or hold things in place. One of humankind's most ancient tools, the wedge has a place in almost everyone's daily life. Learn more in this absorbing new title. More →

Read all about wheels and axles and their many uses in this new book. Children will be thrilled to learn of their many uses, from doorknobs to the insides of a clock. There are wheels that… More →

This book introduces early readers to the healthy habit of exercising by moving their bodies to help them stay fit. Simple text and vibrant images help engage children and grow a love of… More →

Not all is as it seems at Elder Elm Elementary! Kenji, Gemma, and Leo hear about things moving on their own in the gymnasium. It's scaring the other students there! Is it a ghost? It's up to… More →

In this book, early readers are introduced to giraffes! Using engaging and colorful photographs, simple text to build confidence, and exciting sight words, young readers will enjoy learning… More →

People spend more time looking through glass than thinking about how it is made. Glass shows readers what it takes to make glass, as well as the part glass plays in our daily lives.… More →

Slim explores the nutritional value of the grains group in this fascinating new book. Students will learn about the long history of grain cultivation, where grains are grown today, what types More →