After being stranded for more than two months at the lunar outpost, two astronauts set out to retrieve badly needed oxygen from a derelict supply depot. During the return trip their rover’s power source fails. Your students will help design and construct a makeshift fuel cell to get the stranded HAWC astronauts back to the outpost. Power output from the substitute fuel cell will be severely limited, so the optimum route home must also be found. Experiments 1. Design and optimize a zinc-air fuel cell and test its power output 2. Use 3D modeling to determine the most efficient path back to the outpost using satellite topology data Learning Objectives 1. Measure and model electrical potential, current, power, and energy 2. Read and write chemical equations 3. Calculate theoretical cell potential 4. Develop an understanding of redox reactions 5. Explain the difference between anions and cations 6. Describe the efficiency of various power sources (Coal, Gas, Nuclear, Solar, Fuel Cells) 7. Describe the relationship between electrolysis and electrochemical cells 8. Explain what the standard conditions for measurement are and how they affect experimental results 9. Create models for kinetic energy, potential energy, electrical energy, and rolling resistance 10. Create models for various energy conversion processes 11. Scale measurement datasets to fit a range of values 12. Extrapolate classroom experimental results make predictions about models that are orders of magnitude larger.