simple machines

Explains the science of how simple machines work, discussing real-life examples, and including activities that illustrate the principles covered.

Using only discarded items from the recycling bin, a guide to six simple machines invites young readers to build gadgets of their own design while encouraging them to look differently at objects in everyday life.

Looks at basic devices such as wheels, pulleys, levers, screws, and slopes, and suggests simple experiments and projects to demonstrate how they work.

Photographs and simple text describe the different types of simple machines that people use in their everyday lives.

Learn how simple machines work, and how they have changed our world.

Hardware Hal is having a simple and compound machine sale at his hardware store, and his assistants ask him questions about machines. Hal answers their questions by taking them on a journey throughout the store to find examples of machines and showing them how machines help people do work.

Text and photographs introduce simple machines and give examples of their everyday use.

Provides an introduction to simple machines and includes answers to twenty questions about them.

Photographs and simple text in both English and Spanish describe gears and how they work.

Provides instructions for twenty-five cross-curriculum, simple machines-themed projects, activities, and experiments which are appropriate for children ages six to nine.