Readers won't have to disassemble their favorite toys to discover what makes them work. This book explores electric, magnetic, and motion-powered toys from desi

In this stimulating nonfiction book, readers will discover the various types of friction--including rolling friction, sliding friction, fluid friction, and stat

Store clerks work hard to sell goods to their customers every day. Readers learn about the responsibilities, similarities, and differences of store clerks from

Lights! Camera! It's time to explore the art of animation! This fun, engaging nonfiction title allows readers to explore an exciting career as an animator. Read