Discover God's amazing world with your homeschool teen with the computer-based 2011 Switched-On Schoolhouse Earth Science! This 12-unit elective includes quizzes and tests and comes with multimedia-enriched lessons about Earth's formation, structure, interacting systems, and its place within the universe. Made with video clips and games, this elective for grades 8-12 covers topics like:

• rocks
• weather
• water cycles
• the atmosphere
• the solar system