In every ecosystem, there is the movement of matter between plants, animals, decomposers and the environment. How can you create a Rube Goldberg machine to show this movement? By going through the Engineering Design Process, you’ll explore different ecosystems and food webs, Rube Goldberg Machine inspiration, building a design and testing it to show the transfer of energy from one living thing to the next. Print-and-go and digital resources to guide creation and exploration.=====================