This middle school STEM curriculum extension focuses on nuclear science and energy. Teachers will find accurate, unbiased, and current information on the roles that energy and nuclear science play in our lives. The curriculum includes essential principles and fundamental concepts of energy science. This teacher’s kit was developed with input from classroom teachers nationwide in pilot test reviews and workshops, as well as technical reviews from scientists and experts at universities, professional societies, and national laboratories. The kit features lesson plans, experiments, and interactive games and provides information on careers in nuclear science, energy research, and production. At the website, teachers will find a student edition, a teacher’s guide with lesson plans, standards, instructor notes, interactive games, classroom activities, laboratory experiments, and outside resource suggestions.