Workbench is a service that offers a huge catalog of hands-on learning activities for students. Last month at the ISTE conference I got to see one of the activities in action. That was a project in which students create and program their own controllers for a Sphero ball. You can see the results of the project in this short Instagram video.
The project that is shown in my video is just one of dozens of hands-on STEM projects for students. Some require electronics and others can be completed with nothing more than soda bottles, paper, or Legos. For example, one of the currently featured projects is this composting activity.
All Workbench projects include a list of required materials and the sequence of steps to guide your students through to completion of the project. Of course, you could also let students figure out the steps they need to take and let them learn a bit more by trial and error.