Kids can design their own electric circuits that really work with this electricity kit. Each kit includes a battery power source, connecters and electrical indicators, such as light bulbs, a speaker and a fan. The kits also come with an activity booklet that guides kids through the creation of simple circuits to the completion of more complex designs. Once they’ve mastered these, they can begin creating their own electric circuits. “This was so easy to put together that even my 6 year old could follow all of the diagrams,” said Susan Ledford, who homeschools her daughter and son. “This kit demystified electricity for my girls,” added Julie Petoia, another homeschooling mom.