Each collection of experiments encourages science aficionados to explore in-depth such items as motors and electrical circuits along with forces and motion. Straightforward scientific information and color photographs and diagrams are integrated into the projects (most of which require more than just household materials). Questions throughout encourage deeper thinking and engineer-type problem solving. Reading list, websites. Glos., ind.

SOBEY, Ed . Radio-Controlled Car Experiments . ISBN 978-0-7660-3304-7 . LC 2009037896. SOBEY, Ed . Robot Experiments . ISBN 978-0-7660-3303-0 . LC 2009037897. SOBEY, Ed . Solar Cell and Renewable Energy Experiments . ISBN 978-0-7660-3305-4 . LC 2010027430. ea vol: 128p. (Cool Science Projects with Technology Series). charts. diags. illus. photos. appendix. further reading. glossary. index. Web sites. CIP. Enslow . 2011. PLB $31.93. Gr 5 Up These titles are winners. For example, Radio-Controlled Car Experiments is bursting with fast-paced experiments that have easy-to-follow instructions and are sure to interest young car enthusiasts. Also, while Robot Experiments includes some suggestions for science-fair projects and a few experiments throughout, it also provides a detailed description of each component and step-by-step instructions for building a robot. This highly complicated process is explained using understandable terms and in a well-organized manner and includes information as detailed as computer-programming codes. Some steps in the process require scavenging or purchasing specific parts and the directions to do so are included. The color photographs in these titles don't always have the best lighting or focus, but they are serviceable.