Take a journey to planet Earth and beyond to explore 15 different science topics ranging from fossils to the solar system with these engaging texts. This book helps all students grasp important science concepts through high-interest science material written at four different reading levels. Each text is presented in two-page formats and complemented with comprehension questions written at each reading level. Teacher Resource CD features a modifiable version of each passage plus full-color versions of the text and image files. Resource is designed for children in fourth-grade through 12th-grade.