Looking for a homeschool science curriculum that can be easily understood? Here it is! Designed as a precursor to high school biology, this course discusses topics like the atmosphere, weather, Earth's structure, the physics of motion, and the environmentalist movement. Grades 7 to 9. Hardcover student book features questions and answers, lab exercises using household items, and study guides. Includes a 113-page softcover test/solutions book. 445 pages, hardcover from Apologia.