Using a Hydrogen Car to Discuss Renewable Energy (in a University Outreach Program) with Middle School Students (Journal Article)

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Abstract: The use of hydrogen and hydrogen cars is seen as a promising solution to reduce carbon emissions. It is therefore an interesting topic for school, especially for science projects. In this context, it must be emphasized that hydrogen is not a primary energy source, but rather a carrier. This paper describes the contents, the materials that were used, and the conduction of an experiment with a hydrogen car done with eighth graders in a university outreach program. By using a model hydrogen car (Figs. 1 and 2), students were brought into a position in which they were able to demonstrate and conclude whether hydrogen is a viable technology. They were able to discuss the efficiency, the renewable (or not) nature of hydrogen, and limitations of the technology. The results of a small study (N = 33) done within the outreach program showed that the students enjoyed the experiment very much, but they also showed that there are some misunderstandings about what hydrogen is. Finally, the methodological discussion exemplifies the cost–benefit ratio of using the hydrogen model car (from Heliocentris) and the disadvantages and advantages of using the car with middle school students, as well as the lessons learned. Based on my experience, there were some benefits for the students, yet I would not do this experiment again. I might reconsider if I found a cheaper and more reliable hydrogen model car.