Book and teacher key and tests We love John H. Tiner’s science books for middle school students. He writes from a biblical perspective and has won numerous awards for his books on science and medicine for young people. They are excellent introductions to the people and places central to the planet earth, the history of medicine, chemistry, mathematics, and physics. These illustrated books have review questions and activities after every chapter, and Memoria Press has added additional supplemental review questions to each chapter, unit reviews, unit tests, and a final exam for each book in the series.