Eyewitness: Electricity presents the story of electricity - from the earliest discoveries to the technologies of today - explaining how our eyes receive light rays and turn them into electrical signals, how the chemicals in batteries work, how the invention of electric motors allowed for the creation of household appliances, what happens when you tune in the radio, and more.

A guide to the origins, principles, and historical study of light.

Explores the world of natural chemistry, how it is used on a daily basis to produce food and water, to check for infections and diseases, and to help in forensics; and contains full-color captioned photographs and text that explains such topics as chemical reactions, the periodic table, atoms and molecules, and more.

"Begin a fantastic journey through your amazing body systems! Discover everything you need to know about your body with this brilliant book. One hundred facts, fantastic illustrations, and hilarious cartoons give you an insight into how your body works, while fun quizzes test your knowledge. So what are you waiting for? Get reading!" - from the book jacket