This 33-page science mini-book was created to help teach the Next Generation Science Standards for 2nd grade in interdependent relationships in ecosystems.It covers the following principles: the different classes of animals, what is a habitat, what are adaptations, and the following habitats: forest, tropical rain forest, desert, ocean, wetlands, grassland, polar regions, and Australian outback. Worksheets allow children to match animals to their habitats, label the adaptations of animals, and c