We developed a simplified dynamic teaching tool for the reciprocating engine mechanism. The tool can be utilized in an introductory lecture on engine systems and thermodynamics for undergraduate students and a scientific experiment for elementary, junior, and senior high school students. The tool comprises two main parts:1) an empty beverage can rocket that is used to show a combustion similar to that occurring in an internal combustion engine (ICE) of an automobile, and 2) a simple and inexpensive small cut-section-model of ICE to understand the crank mechanism. Because of its portability, it can be passed around to each student during the class. In addition, it can be used in real-time online lectures using a USB external webcam.
