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2012. Carla Mooney. From puddles, lakes, and streams to rivers, bogs and swamps, this book combines hands-on activities with ecology and science, allowing kids to learn about the freshwater biomes and the latest in conservation and protection. Projects include assembling an ecologist's field kit, creating a fishless aquarium, pouring casts of animal tracks, and building a watershen replica. 96 pages, black & white illustrations. Ages 7-9.