Bøger i Essential Physical Science serien

We learn about the world by seeing and hearing, but how do light and sound actually work? This book explores the ways that light and sound travel, how we sense them, and how they affect our daily lives.

"Everyone is familiar with magnets, but how much do we know about how they actually work? This book explores the basics of magnets, looking at topics such as poles, electromagnets, and how we use the Earth's magnetic field to find our way."--