Class members examine a variety of snack foods, noting the packaging that they come in. They work in groups to design a heat-proof and waterproof package that will safely transport a s'more snack. They test to see if it prevents the product from melting and from getting wet. Questions that they consider include whether or not their design is feasible, the amount of material required, and if it is ecofriendly. A funny little video about rats planning to visit a zero-packaging store is an added bonus!