One of the more affordable entries on this list, Circuit Cubes kits come with a battery, a motor, and a light, plus the pieces to build different objects, depending on which kit you choose. For example, with the Smart Art kit you can build a drawing machine, a jewelry box, or a sign that lights up. All of the kits teach how circuits work together to make a motor or light run on electricity, although sometimes the learning happens by trial and error – our reviewer thought that the instructions could do a better job explaining things like polarity. Once you’ve mastered how to make the motor and lights work, you can add your own Lego bricks and other toys, and household objects, and make your own creations come to life! Note that there’s no programming or coding involved. While the current kits don’t connect to a phone or other device in order to work, some of the new kits coming out later this summer will have Bluetooth connectivity.
Credit: Tom's Guide