Includes the following Great Explorations in Math and Science (GEMS) guides: Animal Defenses; Ant Homes Under the Ground; Bubble Festival; Build-it Festival; Buzzing a Hive; Eggs Eggs Everywhere; Early Adventures in Algebra; Elephants and their Young; Frog Math, Group Solutions; Group Solutions Too!; Hide a Butterfly; Investigating Artifacts; Involving Dissolving; Ladybugs; Liquid Explorations; Mother Opossum and Her Babies; On Sandy Shores; Penguins and their Young; Science and Math Explorations for Young Children; Secret Formulas; Sifting through Science; Terrarium Habitats; Treasure Boxes and Tree Homes.