Students will grow AstroPlants through a life cycle, and in the process will become well acquainted with germination, orientation, growth, flowering, pollination, fertilization, embryogenesis and seed development. The lessons in this guide can be used to engage students in the fascination of space biology through plant investigations long after the Space Shuttle mission has entered the history books. It is NASA's goal that the information in these activities will motivate both teachers and students to become active and involved participants in Space Life Sciences, now and in the future.