 Sciencewiz Energy Kit offers 22 projects using high tech components to build a solar racer, a high speed supercapacitor car, and an electric car. Combines simple designs with everyday materials to foster understanding. $19.99 Sale! $13.99 |  ScienceWiz Electricity provides 18 activities to learn about electricity such as: building circuit loops, spinning motors and pinwheels, lighting up bulbs, connecting batteries and buzzers, sending coded messages, testing what conducts, solving word puzzles, and much more. $19.99 Sale! $13.99 |  Electrified Fun is a great science kit to learn about types of electricity, how electromagnets are made and used, and learn about series and parallel electrical circuits. $19.99 Sale! $13.99 |