Citizens need the skills and knowledge to solve problems, evaluate evidence, and make sense of complex information from various sources. A strong understanding of Science, Technology, Engineering, and Maths (STEM) topics can develop these skills and address current demands for STEM-skilled employees across job sectors. Both these needs are urgent. Enabling learners to experience how Science is made can enhance their content knowledge. It can also develop scientific skills, contribute to their personal growth, and result in identity change and an increased understanding of what it means to be a scientist. These changes can be achieved through participation and contribution to citizen science activities that are personally relevant, promote engagement with both social and natural sciences and scaffold understanding of the scientific method, critical thinking, and reflection.