Gr 4-7-These titles vary widely in content and organization. Only a few paragraphs of main text appear on each page, with the remainder found in numerous sidebars and captions for diagrams and photos. Several of the books have a "You Decide" section that provides the pros and cons of controversial issues (e.g., "will robotic research and technology do more good for humans than bad?") and encourages readers to make up their own minds. The science in DNA is at a higher level than the other titles and covers content often taught in high school biology. The type size is tiny, and because the text is broken up into such small chunks, students might need to consult other sources for more information. Libraries may wish to check and see what stand-alone titles they already own on similar topics before investing in the complete series.
