GUC. Newest Edition with some writing. The Abeka 5th Grade Investigating God’s World textbook is a comprehensive science curriculum designed for elementary school students. Published by A Beka Book, this book focuses on teaching students about God’s world through hands-on investigations and engaging activities. With a focus on enjoying good health, students learn about the importance of taking care of themselves and their bodies through various lessons and exercises. The newest edition ensures that students have access to the latest information and educational resources to help them grow and learn in their studies.