• With this fun STEM kit you can make 6 different experiments - a floating ball, a light tunnel, a wire trap, a spinning robot, a rocket launcher and balance balls. Rearrange the boards to organize ... the modules in your own way! • Learn the principles behind electricity, circuitry and engineering as you run the included experiments and even design your own. Download the free Discovery #MINDBLOWN App to discover exclusive DIY videos, games and more. • Build working gizmos and gadgets with the Action Circuitry Electronic Experiment Set from Discovery #MINDBLOWN! You can build kinetic sculptures and spinning robots, and even exciting toys that launch and levitate objects! • Each experiment requires 2 AA batteries (12 total, not included) to power the modules. You must connect batteries to run the experiments.