Grade 3 and up. Using this kit, students can conduct 25 simple experiments to learn how an electric motor converts electricity into motion, how an electric generator converts motion into electricity, how magnetism is related to electric current, and how circuits operate. Electric motor in the kit is made of transparent plastic so students easily can see how it works. Kit contains enough materials for 1 student or 1 group of students working as a team. Color manual contains experiments and step-by-step instructions. Power pack requires 2 AA batteries (not included).