"Simple text, full color photographs, and illustrations introduce beginning readers to the basic principles of screws. Developed by literary experts for students in grades 2 through 5"--Provided by publisher.

"A screw is a simple tool, but it can be used to fix lots of things. Let's find out how screws are used every day. Screws is part of Decodables by Jump!, a comprehensive library of decodable leveled readers that follow a sequenced approach to phonics instruction. Young readers will enjoy colorful, photo-packed nonfiction as they follow a prescribed format supported by the science of readers that encourages reading development"--

Learn about how a screw works! Beginner readers and budding young scientists will love learning about using simple machines in everyday situations. Along the way, readers will be supported by expertly leveled text, a strong text-photo match and appropriate text load. Readers will be excited to dig in and learn all about simple machines and basic physics concepts.

"In this book, readers will learn about one of the six simple machines as described by Renaissance scientists. Vibrant, full-color photos and carefully leveled text will engage young readers as they learn how screws are used to hold things together"--

"Relevant images match informative text in this introduction to screws. Intended for students in kindergarten through third grade"--

The screw is a simple machine that helps make work easier. This book discusses what a screw is, where it can be found, and how it is used. Features visual diagrams and hands-on experiments. Science Matters is a series of books dedicated to inspiring young readers with a lifelong curiosity about science and the world.

Introduction to screws, one of the simple machines.

Text and pictures introduce the screw, a simple machine used primarily as a fastening device.