The second edition of A Laboratory Manual for Introduction to Environmental Science emphasizes the scientific method. Instructors can use this manual to develop in their students solid laboratory/ field skills, through a collection of new and classic experiments and activities. The manual stresses quantitative skills, with included step-by-step instructions for the more difficult calculations. Each lab activity starts with an interesting quote and most end with a variety of relevant post-lab questions, designed to stimulate critical thinking. A useful appendices section includes a guide on how to correctly write a lab report, a section on “green living,” a safety contract/ waiver, and a useful example of a dichotomous key.