This activity is for finding out what happens when materials stay in water for a long time. Give children an egg carton and let them put water in each compartment. Then choose different items for each compartment and predict which items will change. It’s important to help them understand that some items change in water and some do not. A materials list, internet resources, standards, and safety practices are provided. This book selection also includes the Table of Contents, Preface, About the Editors, Introduction, Simple Graphing for Young Children, Science Teaching Boards and Boxes, Basic Materials List, and Index.