Alfred P. Morgan produced an excellent book to help young people discover science and scientific principles through the construction of scientific experiments. Each chapter is a description of a phenomenon and a detailed step-by-step plan, with drawings, to show how to build an apparatus to conduct an experiment to learn more. The principles include several weather experiments, a great section on gyroscopes, a section on steam power, and several experiments showing how sound can be studied, as well as many other fascinating ways to learn scientific methods and have great fun. While the book is about ninety years old, the experiments can still teach effectively. The construction of the experiments can challenge a young person to learn to use simple hand tools and discover the joys of craftsmanship as well.