Seller, Mick

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

Text and photographs look at basic devices such as wheels, pulleys, levers, screws, and slopes, and suggest simple experiments and projects to demonstrate how they work.

Suggests experiments and projects for exploring the properties and principles of sound waves and how they can produce noise or music.