Science notebooks are an individual portfolio of a child's development and comprehension over the course of each unit as well as the entire year. Using notebooks reflectively in inquiry learning enables students to review their own ideas about a topic while creating opportunities for teachers to make formative assessments. Teacher reviews of children's development encourage the instruction to be on the level of inquiry that best meets the needs of the individual. The beauty of science notebooks is that there is not one precise way to create and develop them but a variety of ways that may be adapted to best meet the needs of the individual. In this article, the authors provide a list of approaches they have successfully implemented to introduce and reinforce science concepts. The article also includes a poem about science notebooking.