This book is a concise hands-on guide that provides students a useful tool for a systematic approach to scientific inquiry. Science Theory for Engineers and Physicists provides a basic understanding of "the method" as a question and to understand how a reliable answer that can be validated is constructed. It covers the basic terminology and methods which are exemplified for ease of understanding for the reader. Testing of hypotheses and quantitative understanding of uncertainty and uncertainty propagation are also illustrated. The book is intended to be used with experimental work as a final or thesis project for undergraduate or graduate students who have not had prior experience in science theory or data handling and uncertainty.