Fifth grade science students will use this track to obtain inspiration for designing their own compound machine. Their Rube Goldberg style compound machine will be designed to crack an egg. Missouri Assessment Program Performance Standards 2. Conduct research to answer questions and evaluate information and ideas 4. Use technological tools and other resources to locate, select and organize information 7. Evaluate the accuracy of information and the reliability of its sources Science Skills Knowledge Standards 2. Properties and principles of force and motion KEY WORDS: Leonardo da Vinci, Rube Goldberg, simple machine, compound machine, Lever, ramp, screw, wedge, pulley, gear, wheel and axle, machine, energy, science, 5th grade