Reed 
Microwave Ovens [PDF ebook] 

Did you know the microwave oven was actually invented by mistake? While experimenting with electricity, a scientist noticed the chocolate snack he had in his pocket actually melted. This led to the technology that has made cooking faster, more convenient, and used more than conventional cooking. This book addresses the differences between a standard oven, which uses conduction, and a microwave oven, which uses microwaves, causing food molecules to move, creating heat. The more the molecules move, the hotter the food gets. So, pop in a snack, set the timer, and in a few seconds you’ll be ready to enjoy! This book will allow students to plan and conduct an investigation to determine the effect of placing objects made with different materials in the path of a beam of light.