We know that electricity comes out of a socket in the wall, but what is it exactly, and where does it originate? Find out the answers to these and many other questions as you read through this book. At the end, you will find yourself looking at all your technological gadgets in a completely different way! STEM stands for science, technology, engineering and mathematics, and it is not just for scientists. The existence of the whole Unvierse including us and our daily lives, can all be described with the wonderful scientific facts that make up the topics included in STEM. In this series, you will find out how easy STEM is to understand, and also discover how you can see it in action every second of every day.