This paper presents the multimedia product for teaching Natural Sciences to 10-12 years old children. In this product three pedagogical agents, Teacher and two pupils guide the learner through the virtual environment. The inclusion of a team of pedagogical agents permits us to create a micro-model of lesson activity and gives a reliable support of individual learner differences. The script-based approach is used for creating the rich multimedia content of this product. Scripting object-oriented language NML and authoring environment NATURA is described.