Citizen Science projects ask their participants to contribute work to pre-defined topics, thereby typically rendering the participants as mere consumers of often narrowly defined tasks. In this work-in-progress paper, we present our work on an interactive experimentation platform that allows anybody — researchers as well as members of the crowd — to run experiments and test scientific hypotheses with a local crowd of volunteers. The platform also enforces a lightweight review process for teaching its users how to formulate valid scientific hypotheses and experimental designs.