Provides examples to describe levers as simple machines used to lift, push, or move a load. Includes an activity.

Learn about the different uses of levers. How does it work and why? These fun science books answer kids' questions about the world around them-and encourage them to ask more.

Explains how and why ramps and other inclined planes are used in everyday life.

Provides examples showing how screws are simple machines that make joining things together and moving, easier.

Describes many different kinds, uses, and benefits of pulleys. Provides examples of pulleys by showing a flagpole, a crane, an elevator and window blinds.

Presents examples of levers used in the past and in everyday contemporary life.

Discusses what wedges are and how they are used.

The shovel that helps you dig a hole, the chopsticks you use at lunch, and some of the big machines we see when passing by construction sites are all examples of levers. This book takes a look at the simple machine behind these different objects, using everyday examples and kid-friendly experiments to illustrate the physics behind this fascinating simple machine. Easy-to-read text will encourage readers, while large, colorful photographs will illustrate the concepts at hand. Students will be interested to see the ways that they interact with levers on a daily basis, and further reading and websites will encourage them to seek additional information.

From zippers to the Pyramids, rolling pins to catapults, we are surrounded by simple machines. This book will amaze kids with the ingenuity they already possess and inspire them to look differently at the objects they use everyday. Explore Simple Machines! With 25 Great Projects introduces kids to the concept of “mechanical advantage,” and harnesses kid-power by inviting them to build machines of their own design. It opens their eyes to the diversity of machines in their lives, and sparks the imagination with challenge, humor, and achievable projects. Explore Simple Machines! dedicates a chapter to each of the six simple machines that were identified centuries ago: levers, inclined planes, pulleys, screws, wedges, and wheels & axles. Kids will develop analytical skills as they figure out where force is applied and what kind of work it generates.

You might not realize it, but you use many kinds of levers every day. The fork you use to eat, the broom you use to sweep, and the scissors you use to cut paper are all levers. Even the bones inside your body are levers. Levers help us lift things and get work done—readers learn all about the science behind levers in this fun and fact-filled book. Bright photographs and illustrations accompany accessible text to help readers understand the science concepts presented in this book. Readers will also find a detailed graphic organizer and glossary inside, allowing them to independently explore these simple machines.