A large ecosystem, e.g., deciduous forest, invariably embraces numerous habitats. A habitat is a localized area with particular conditions that make it conducive for the growth and reproduction of certain species, but not others. The following site provides photos of a range of habitats. Have students select a habit, describe the factors that distinguish it from others, and how those factors lead to certain species and not others from living there. We welcome reports on how your kids do with this exercise.