Holt McDougal Earth Science, Spanish Assessment Guide Holt McDougal Earth Science With an emphasis on inquiry, critical thinking and problem solving, Holt McDougal Earth Science provides students with opportunities to observe and apply the scientific processes necessary for Earth science mastery. Grades: 9-12 Material Type: Teacher Materials Format: Softcover, 160 Pages ISBN-13/EAN: 9780554016252 ISBN-10: 0554016257 Product Code: 1084367 National/State: National Copyright Year: 2010