Learn basic Electricity and Magnetism experiments through , understand the basic principles, and help Students learn, think and explore. The Electromagnetics Kit provides students (ages 8+) with hands-on experience designing and building models of working electrical circuits, as well as magnetism and energy conversion experiments, etc. A great electronics kit for high school students (grades 10, 11, 12) to improve on what is being learned in physics class. This learning kit is a complete set of basic physical electromagnetics experiments. At the same time, it's also a good educational toy. Learning by playingClear and concise illustrated manual included. NOTE! : Requires 3 AA batteries (sold separately) Build working models of electric motor, electric bell, and hand crank generator. Investigate the relationship between current, voltage, and resistance：Series Circuits,Parallel Circuits,Fruit Battery,Measure unknown resistor with Ohm's law,Oersted Experiment,Electromagnet,Amper's Force Investigation。