Launch an exciting science learning adventure with Christian Kids Explore Physics! The universe we travel is the result of God’s thoughtful design and careful building. Physics gives us a glimpse into the materials, laws, and structures of that universe. Behold the wonders of creation with this series of 30 easy-to-understand lessons for grades 4-8. Each lesson helps develop an understanding of matter and energy and the rules they follow. Exploring physics is an exciting adventure!