Students worked in groups to build a Rube Goldberg machine to perform a task of their choosing. Throughout the build, the themes of Energy conservation and conservation of matter were explored. Many chose to use a battery operated LED circuit that they built because of the storytelling that can occur just with that one simple build:

  • Electrical energy transformed to thermal energy by the soldering iron to solder the parts together in the circuit
  • The transformation of chemical energy (battery) to electrical energy (circuit) to light energy (LED).
  • Conservation of matter: measuring the decrease in the spool of solder mass at the beginning of the build, to the ending mass of the final circuit.

Always fun to watch the students’ process, and the joy that they have when their ideas work.