Students usually have difficulties to understand abstract concepts of electric circuits. Various electric circuit models are used to build comprehensive bridges between reality and models. In this study, effect of using the water circuit analogy on students’ conceptual understanding is explored. Sample divided into three groups. For experimental group I, electric circuit mental-models animated in their mind and applied. For experimental group II, electric circuit mental models and water circuit analogy were applied. For control group, traditional teaching method was used. The results indicate statistically significant differences between two experimental groups and the control group. The use of electric circuit mental models and water circuit analogy as teaching aids were more effective in electricity concepts than traditional teaching method.