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! Other books in the Thinking About Science Series include: The Human Body, Our Ever-Changing Earth, and Our Solar System.Grades 4-7 48 pages