In "My Little Planet: The Lonely Oak Tree," Hanna and Olli discover that a neighborhood park is being destroyed to make room for a parking lot, leaving only an old oak tree behind. Through their conversation with the tree, the story introduces environmental conservation, urban development, natural beauty, and the life cycle of plants through acorns and replanting. The episode highlights empathy, responsible decision-making, and community awareness as the characters respond to habitat loss and the importance of protecting green spaces. With clear connections to elementary science, social studies, and social-emotional learning, this video supports topics such as plants, ecology, conservation, and caring for shared community environments. Part of the "My Little Planet" series.