STEM Elementary Classroom Project for Kindergarten, First Grade, and Second Grade.In this activity, students will work in groups to explore the properties of Oobleck. They will be testing random objects such as paper clips, toothpicks, marbles, string etc. to determine whether they float or sink. Oobleck has properties, unlike most substances we usually encounter.***If you are interested in a differentiated version of this resource for grades K-8, please click here.This STEM Activity Challenge i