simple machines

Simple text and photographs explain the basic science behind wheels and gears.

Descubra c?mo esta sencilla m?quina facilita la elevaci?n y la bajada de objetos. Aprenden sobre poleas fijas y m?viles y cu?ndo es mejor usar cada una.

Describe los planos inclinados y las formas en que se utilizan.

Analiza las cu?as y las formas en que se utilizan.

Analiza los tornillos y las formas en que se utilizan.

Descubra c?mo esta sencilla m?quina facilita la elevaci?n, la reducci?n y la apertura de las cosas. Aprenden los tres tipos de palancas: de primera clase, de segunda clase y de tercera clase.

An exploration of simple machines that discusses inclined planes, wedges, screws, levers, pulleys, and wheels and axles, and includes instructions for related experiments and activities.

Three young volunteers at the Metro City Science Museum discover they've actually volunteered for a great adventure after the museum's most prized exhibit is stolen by the evil Dr. Smasher. To recover it, they must use their knowledge of matter to survive an erupting volcano, operate a submarine, and ultimately outwit the wicked villain. Readers are invited to help fight crime, too, by learning about properties of matter and solving puzzles throughout this interactive adventure. This entertaining, high-interest volume, with its close ties to curricular content, is a motivating addition to any science collection.

Curious Pearl and her brother don't like chores, they'd rather play with their kitten. But Dad looks serious, so Pearl and her brother come up with a solution. They build a contraption to help them with their chores, and as they build, Pearl teaches her brother all about simple machines. Free bonus video content through the Capstone 4D augmented reality app enhances the science experience.

With just a few supplies and easy-to-follow steps, create a marshmallow catapult. This project demonstrates how a simple machine and forces and motion send a sweet treat skyward.