Introduce your ninth graders to the physical sciences with Abeka’s Science Matter and Energy. Students will learn the fundamental properties and behavior of matter and energy with a focus on their chemical and physical interactions, laying a firm foundation for future studies in chemistry. The 2-volume Science: Matter and Energy Quizzes/Tests Key contains copies of pages in the sold-separately Science Matter and Energy Quiz and Tests books. Answers to objective questions are overlaid on the pages and suggested answers to essay questions are included. You’ll also find a grading scale for each question. 78 and 74 pages, two softcovers. Grade 9.