Our augmented reality sandbox is an interactive exhibit that combines a physical sandbox with digital projection technology to create a real-time, responsive, and visually immersive experience. The sandbox is filled with regular sand, and an overhead projector and depth-sensing camera track the height and shape of the sand in real-time. The system then projects colors and textures onto the sand based on its contours, simulating things like water, mountains, valleys, and other topographical features.

Augmented reality sandboxes support children’s learning by transforming complex earth science concepts into interactive, hands-on experiences. By shaping mountains, valleys, rivers, and lakes, children gain a concrete understanding of topography, water flow, and landforms, as the sandbox's responsive projection system provides real-time visual feedback. This cause-and-effect interaction helps children explore concepts like erosion and watersheds through active experimentation, which fosters curiosity and reinforces learning. The sandbox integrates multiple STEM areas, promoting spatial awareness, logical thinking, and problem-solving skills. It also encourages creativity and teamwork, as children collaborate to build landscapes and simulate environments, enhancing communication and cooperation. Above all, the playful, immersive nature of the sandbox makes learning engaging and memorable, turning abstract concepts into enjoyable, tangible experiences that are easier for children to grasp and retain.