This study aimed to explore whether the integration of virtual reality and augmented reality used in a specially designed science book could improve the students' science concept learning outcomes. A true experimental research design was conducted to check the effectiveness of the specially designed book in terms of learners' achievement. The sample for this study consisted of 80 fifth-grade students, divided into a control and an experimental group. The results revealed that using mixed reality (augmented reality and virtual reality) as a learning supplement to the printed book could improve students' learning outcomes, particularly for low spatial ability students. Finally, recommendations for future practices and research are discussed.