? Discussion questions are found at the end of each chapter. ? Free, downloadable study guide. ? Sixth book in the series with over 150,000 in print. ? Home school educators will appreciate this latest installment. The latest installment of the wildly successful ?Exploring? series, this textbook supplement explains physics in remarkably clear detail. Complemented with black-and-white illustrations, the book uses ordinary speech to explain the concepts of physics. The author?s goal is to ?write at a 6th grade level, but explain the concepts so that a motivated 4th grader can understand the material.? Physics equations and formulas are kept to a minimum. The author starts with the simple and goes on to the complex, and the development is somewhat historical in nature, but is intended to be an introductory book for beginning physics students. Material of a more difficult nature is found in sidebars entitled ?For More Study.?