In this engineering lab, you will build and test a device that releases and absorbs thermal energy in order to reach a goal. Don't forget what you learned about repeated trials. You will need to repeat tests of your device to make sure it does not need to be redesigned or improved. Use the Thermal Energy and Chemical Change Lab Report to record your observations and test measurements. You will submit your completed report. Be sure to review the grading rubric before you begin. Thermal Energy Engineering Building Criteria and Limitations You must have at least one steam engine and one cargo box in your train design. Everything else is up to you—build items across, or stack items on top of each other. The train track will have two hills and spaces where the track is missing. Consider these limitations when designing your train. Make sure you note these criteria and limitations in your lab worksheet. Before you test your trains, plan at least three train designs. Add these design descri