Presents encyclopedic information on various fields of scientific study, including physics, chemistry, biology, astronomy, and Earth science.

Why do things float? How do magnets work? What is gravity? The answers to these questions and more can be found in this fact-filled book. Simple, easy-to-read text and lively illustrations introduce basic science topics. Also includes fun science activities and exciting recommended websites.

A comprehensive science reference book covering key topics from gravity, flight and floating to genes and DNA, with clearly written explanations and superb photographs and illustrations. QR codes for each topic provide instant access via a mobile phone or tablet to over 180 video clips of experiments, animals in their habitats and animated lessons that enhance the information in the book. Includes links to an additional 1000 recommended websites for further study and homework help via the Usborne Quicklinks website. With a glossary of 1,500 scientific terms, as well as key dates and biographies of scientists and inventors, and 140 simple experiments for children to try at home. An exciting reference book that will stimulate children's curiosity and inspire the scientists of the future.

Contains experiments, activities, A-Z dictionary, review questions and suggested websites for each topic.

Facts, quizzes, experiments, and illustrations link basic scientific principles with everyday life.

A comprehensive reference book covering everything from planetary physics to genes and DNA. With a glossary of 1,500 scientific terms, key dates, biographies of scientists and inventors and 140 experiments to do at home. QR codes allow readers to access hundreds of carefully selected websites, resources and quizzes - straight to a mobile device.

This science encyclopedia incorporates astounding photographs and high quality illustrations with the most reliable information available. Over 1000 websites are included, plus free downloadable images. A dictionary explaining scientific words is included.