The book is free of gender, ethnic, and socioeconomic bias. Presentation is logical, and sequence of ideas is clear. The content level is appropriate for the intended audience. Items shown are accurate in size, color, and scale. Illustration labels are clear.
Illustrations showing people portray cultural diversity and gender equity.
The size, format, and typeface of the book are appropriate to the subject and audience. Layout is well organized and advances the text. The paper, binding, and reproduction are of high quality. Experiments suggested for children lead to an understanding of basic principles and are safe, feasible, and appropriate for the intended age level. Science books may contain stories, folktales, and poetry based on nature, but a book should stand on its own as a science book without them.