School Library Journal - Judith V. Lechner

Clear language, embedded definitions, and interesting examples illustrate abstract concepts through both text and well-chosen photographs. The authors do not avoid difficult or controversial issues: Changing Life, for example, provides a clear and useful explanation of the theory of evolution, with multiple sources of evidence and a discussion of how it helps scientists to predict the implications of changes to the environment. Science Ethics discusses topics such as global warming and animal research, and their implications for decision-making by scientists, policy makers, and voters. Because so many issues are raised in this book, it will be especially useful as a research starter in both science and social-studies classes. In addition to describing relevant theories and the scientific explanations for observed phenomena, each book also discusses the impact of human activities on the issues discussed, whether the way humans impact ecosystems (Ecology) or how smoking and drinking affect sperm count and the unborn child (Human Reproduction). The main focus, however, is on the scientific concepts rather than applications–for instance, Human Reproduction does not discuss contraception except to note the statistic that "sexually active teenage girls who do not use contraceptives (birth control) have a 90 percent chance of becoming pregnant within a year." Each book also includes suggested activities to test ideas as well as a thorough glossary and a Webliography.–Judith V. Lechner, Auburn University, AL<i> School Library Journal</i>September 2009