A very basic introduction to screws, levers, planes and more.

These kids are playing a game, trying to move a person with a simple machine. Which will work better—an inclined plane or a lever? Readers will see them compare the simple machines to decide. This book supports engineering design standards for primary grades in the Next Generation Science Standards.

Building a fort in the backyard, a grandfather and granddaughter get help from six simple machines: lever, pulley, inclined plane, wheel and axle, screw, and wedge.

Introduces six simple machines, describing how they work in more complex machinery and how they are used every day.

For use in schools and libraries only. Includes an assortment of activities using such simple machines as pulleys and levers.

The third edition of this book exposes the reader to a wide array of engineering principles and their application to agriculture. It presents an array of more or less independent topics to facilitate daily assessments or quizzes, and aims to enhance the students' problem solving ability. Each chapter contains objectives, worked examples and sample problems are included at the end of each chapter. This book was first published in the late 60's by AVI. It remains relevant for post secondary classes in Agricultural Engineering Technology and Agricultural Mechanics, and secondary agriculture teachers.

Introduces simple machines, including screws, levers, wedges, and pulleys, describes how each makes everyday life easier, and provides activities demonstrating these machines in action.