Analyze the "Exploration of Water Composition and Changes" in student group experiments, improve and innovate water electrolyzers from multiple perspectives, compare the types and concentrations of electrolyte solutions, and analyze the ideal electrolyte solution for student experiments. The aim is to fully utilize the educational function of experiments, while achieving multiple goals such as simple operation, durable instruments, obvious phenomena, safe experiments, and high accuracy. This provides reference and guidance for students to understand the composition of water, the smooth development of related teaching work, and further research.