Choose these Gallopade Science Alliance Books for the science lover in your life. Each book includes a variety of fun, educational activities. Combines challenging science and kid-friendly, hands-on activities and experiments. Boasts a science fair project in every book. Includes 4 books: Christina Examines Plant Cells and Animal Cells, Eddie Explores Ecosystems and the Food Chain, Gina Discovers Genetics, Characteristics, and DNA and Hannah Hunts for Habitats.