Holt Science Spectrum: Physical Science with Earth and Space Science Interactive Reader Holt Science Spectrum®: Physical Science and Physical Science with Earth and Space Science Holt's introductory physical science program integrates chemistry, physics, Earth science, space science, and applied mathematics and emphasizes the important connections between these subjects. Grades: 9-12 Material Type: Resource Materials Format: Softcover, 552 Pages ISBN-13/EAN: 9780030936128 ISBN-10: 0030936128 Product Code: 1159643 National/State: National Copyright Year: 2008