Evan-Moor read and understand science book. Each volume of read and understand science contains 27 nonfiction and realistic fiction stories that present science content. The stories address objectives drawn from the National Science Education Standards. There are stories in the areas of life science, physical science, earth and space science, and science and technology. Each two page story is followed by three pages of activities: comprehension, vocabulary, and a related science or language arts activity. Answer key included. 144 pages. 1 to 2 Grades. Early childhood-elementary grade.