Grade 7 students will learn that there are many factors to consider when building a structure such as its form and purpose as well as social; economic, and environmental factors. They will study the impact that these structures have on the environment. They will learn more about the effects of forces that act on and within different structural forms. Using increasingly sophisticated techniques, students will continue to investigate how different structural forms support or withstand loads by designing, building, and testing solid (or mass) structures, shell structures and frame structures.