Praise for How The World Works NSTA Recommends Natural curiosity about scientific topics flourishes in an environment where asking questions is encouraged. Discovering answers through experimentation and research fosters additional questions. Throughout this process teachers may be faced with a flurry of scientific questions ranging from life science to technology. How the World Works by Clive Gifford provides a resource to feed this boundless curiosity. . . . With curiosity fully fueled, the reader is encouraged to investigate any of the topics at web sites provided at the end of each chapter or through further texts referenced on each topic. How the World Works provides a broad base of information that will encourage that next question, encouraging the next generation of scientists.