What makes a roller coaster fly down its track? How does a magnet work? Why do you get zapped when you touch a metal doorknob? And does cereal with iron REALLY contain iron?
If you're curious, you have dozens of questions like these. The projects in the books will help you find the answers. You'll learn why a tornado forms, see how electricity flows, and eve find out what global warming is all about. Best of all, you'll do the projects yourself!
