Pollock, Steve.The Atlas of Endangered Places. Facts on File, 1993. Text and maps focus on areas of the world in which human activity is affecting the natural balance; for younger readers.
Suzuki, David T.Looking at the Environment. Wiley, 1992. Includes easy-to-follow instructions for many experiments; for upper elementary and middle school readers.
Tesar, Jenny E.Endangered Habitats. Facts on File, 1992. Examines various habitats and the complex relationships of the plants and animals found in them. For young adult readers.
Reagan, Douglas P., and Robert B. Waide, eds.The Food Web of a Tropical Rain Forest. University of Chicago Press, 1996. In-depth study on tropical forest functioning.
Silverstein, Alvin; Laura Silverstein Nunn; and Virginia B. Silverstein.Food Chains. Millbrook, 1998. Components of the food chain; for young adults.