What really makes the things around us tick? Did you know that the principle behind the zip fastener also governed the building of the pyramids? Or that the dentist's drill is a direct descendant of the first windmill? The inner workings of hundreds of machines and devices are explained in this fun, colourful and unique look at.

Part of a series, this book looks at numbers in an attempt to make science discovery fun. The book includes puzzles, tricks, games and things to do and make, using items found around the home or in the classroom. Written by the co-winner of the Science Book Prize in 1989.

Offering visual information, this title helps students whether they want to know about playing a guitar or a weird wailer.

Includes over 300 biology terms, clearly explained using everyday examples. This title is illustrated with artwork and photographs throughout. It also includes special features on key topics, such as circulation, muscles, blood, and skin.