(4) 4-6 Ace Your Science Project series. Dozens of life- and physical-science activities are presented with background information, step-by-step instructions, and suggestions for extending to the science fair level. Many of the experiments are quite involved, requiring access to difficult-to-obtain scientific materials, the use of mathematics, and careful data collection (sometimes over extended periods of time). Color illustrations and important safety information are included. Reading list, websites. Ind. Review covers these Ace Your Science Project titles: Ace Your Animal Science Project, and Ace Your Ecology and Environmental Science Project, Ace Your Human Biology Science Project, Ace Your Math and Measuring Science Project, Ace Your Physical Science Project, and Ace Your Science Project Using Chemistry Magic and Toys.

Reviewer: Danielle J. Ford

(4) 4-6 Extreme Sports series. Bold, energetic color photographs capture the excitement of these "extreme" sports. Short chapters written in a simple, accessible--if somewhat bland--style introduce the skills, equipment, and safety precautions required. Acknowledging the level of difficulty involved in these daring sports, the volumes are more surveys than "how-to" books. Bib., glos., ind.

Reviewer: Charlotte S. Huck

(4) YA Science Fair Success series. These books provide exhaustive coverage of preparation for science fairs and extensive lists of materials suppliers, possible topics (including an entire volume on plants), and Internet sources. The Internet volume contains information on using the Internet to communicate with scientific researchers, but mainly includes a topical list of websites, which may quickly become outdated. Black-and-white illustrations vary in quality and helpfulness. Bib., ind.

Reviewer: Danielle J. Ford

(4) 4-6 Watts Library series. These dry but serviceable books provide general overviews of their respective groups of mammals. Each animal is discussed in a separate chapter that lists information about its physical features, life cycle, diet, habitat, and behavior. The texts are rife with statistics, but the facts could have been presented in a more interesting manner. Maps, captioned color photographs, and sidebars round out the presentations. Bib., glos., ind.

Reviewer: Emma Loy-Santelli

(4) 4-6 Watts Library series. These dry but serviceable books provide general overviews of their respective groups of mammals. Each animal is discussed in a separate chapter that lists information about its physical features, life cycle, diet, habitat, and behavior. The texts are rife with statistics, but the facts could have been presented in a more interesting manner. Maps, captioned color photographs, and sidebars round out the presentations. Bib., glos., ind.

Reviewer: Emma Loy-Santelli

(4) 4-6 First Book series. 'Bats' covers physiology, behavior, and habitats of various types of bats and discusses ongoing conservation efforts. In a more choppy text, 'Apes' begins with a brief discussion of evolution, moves on to introduce different members of the great ape family, and concludes with a chapter on threats to these mammals. Both books, illustrated with full-color photos, are adequate overviews of their popular subjects. Bib., glos., ind.

Reviewer: The Horn Book, Inc.