A design challenge activity to design and build a roof that will not leak when exposed to simulated rain. The phenomena students explore is how the water cycle impacts man-made structures in natural environments. Students engage in the EDP process to define and delimit the problem (Ask), design possible solutions (Imagine), evaluate potential solutions (Plan), build/test/collect data (Create), and optimize the design solution (Improve). The engineering notebook documents the student work of the engineering design process and addresses all 8 of the NGSS Science and Engineering Practices (SEP).

See also, Roof Design Challenge Activity 2.