Generally, we need to perform different experiments in order to examine Boyle’s law and the law of Charles and Gay-Lussac. In this work we proposed a method which could allow us to not only investigate the preceding two laws, but also extend a connection to all the other laws such as Avogadro’s law, Dalton’s law, combined law, and the general form of ideal gas law. An analysis of the data obtained in this experiment yields acceptable results. For example, the conversion constant between the Celsius and Kelvin scales was found to be 1.15% less than the true value (=273.15), and the universal gas constant was found to differ from the true value of 0.08206(L-atm/K-mol) by 1.16%. If the idea of this experiment can be applied to design a more feasible experiment for students to follow, students can not only learn all the ideal gas laws, but also know how to apply them in practical situations.