Teacher Demo – Can you make an orange sink? Students measure the mass and volume of water, plot data on a graph, and derive the density formula Students predict if objects will float or sink based on density and explain their reasoning Students will sink leaf disks. As the leaves produced oxygen during photosynthesis, they will rise. Writing prompt – › Using what you have learned about density, think about a career where the concept of density is important. Write at least 5-7 sentences about the career and how the concept of density is used.