This document summarizes a study exploring how children interact with and build using different sand materials - dry sand, wet sand, and sand play-dough. The study observed that children approached the materials differently, using tools like shovels, buckets and hands in various ways. They found wet sand was easier to mold than dry sand but harder to pour. Children were more exploratory with unfamiliar materials like wet sand initially but engaged in more symbolic play with familiar dry sand. The study aims to apply lessons to real-world activities like gardening and cooking.