ABSTRACT
This chapter describes the procedure for making own ‘popping’ fruit juice balls. The students can compare different fruit juices and how much sodium citrate needs to be added for the popping balls to form. 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.
