With the change in the global climate and the shortage of energy, it is becoming much more difficult to conserve our environment. Energy efficiencies and carbon reduction are not only the most important policies of our government but also the focus of education. The data collected for this study came from the ”Innovation Competition on Daily Energy Resources Saving” competition sponsored by the National Science and Technology Museum. The participants did not work in the field of education. Before and after the competition each participant was interviewed about their knowledge of green energy. The results of the interviews demonstrated how much each participant learned about green energy from participating in the competition. The study used the revised version of Bloom's Classification of Cognitive Educational Objectives to make a Pivot Table report to show the results of the study. Furthermore, to find out if the cognitive processes of the participants changed after the competition. The competition also shows that the cognitive processes of learning are helpful to the students in acquiring knowledge.