Ecology is a comprehensive, fun-filled unit on ecology. Students learn important facts about biomes, ecosystems, food chains, and more. They are also presented with opportunities to practice crucial critical-and creative-thinking skills. A variety of types of activities are included: creative writing, research, analyzing, evaluating, and more. A fun What's the Question? game is provided to reinforce the concepts learned in the unit. In addition, a crossword puzzle is included. The puzzle may be used to evaluate knowledge or just for fun!