ABSTRACT
Ordinary batteries produce an electrical current due to a chemical reaction taking place inside the battery. They therefore act as energy stores and can be used to power an electric circuit. This chapter describes the procedure for powering an electric circuit using just a potato. This real-world science experiment is structured as a problem-solving activity thus helping KS3 science teachers to engage students effectively in the secondary school classroom. First, background science knowledge for this experiment is provided, along with the learning objectives, list of materials needed for the experiment, safety and technical notes, and a list of engaging activities to be performed by students. Data collection ideas are subsequently provided, together with useful questions to ask the students and also suggestions for homework.
