Too bad we can't have a block center any longer. Create a photo book of famous structures from around the world to use in your block center. Great for kindergarten, preschool, and homeschool classrooms! Includes a link for a free structure book!
This is an inquiry based lesson. The student has to determine if the clay sinks or floats, whatever the clay does not do, the students have to morph the clay so that will. If it sinks then they have to form it so that it floats.