[close] Why do you see sparks when you walk across the carpet or take off a scratchy sweater? What makes metal rust? With 730 Easy Science Experiments you can rediscover the answers to these questions and hundreds more right at home, using ordinary materials. Those simple and entertaining experiments will teach you loads of amazing new tings, like: · What makes gravity work · How electricity moves · Why magnets attract · How the greenhouse effect warms the earth · Why and how light bends Detailed instructions guide you through each experiment step-by-step. 730 Easy Science Experiments will remind you that being a scientist doesn t just make the world a better place-it s also a lot of fun! [close]