Provides instructions on how to do simple science experiments using simple machines, and gives explanations for why they work.

Explores the properties of simple machines through experiments, using material readily available in most homes and schools.

Every time you turn on a faucet, ride a bike, or open a door, you're using a simple machine called a wheel and axle. This book uses clear text and practical, ev

Do your readers wait until the last minute to start their science project? Don't worry, award-winning author Robert Gardner has everyone covered. Each experimen