Teach the engineering design process with natural disasters! Fourth or fifth grade students learn to define a problem, identify criteria and constraints, brainstorm, build a prototype, design and carry out a fair test. STEM activities focus on ways to reduce impacts of floods, volcanoes, erosion, tsunamis, and earthquakes on Earth. Open the preview to take a closer look. These activities can be presented on five consecutive days or spread out over weeks or months. If your students are already fa