In this FACTivity, you will build a physical representation, or a model, of a beaver dam. Some of the questions you will answer in this FACTivity are: How can you successfully build a model of a beaver dam? What are the similarities and differences between a beaver dam and a logjam? Materials (for each student or group of students): Large disposable aluminum pan Dirt – enough to cover the pan’s bottom to 1″ A bucket of extra dirt with water, mixed to a thick mud Scissors (for the educator or sup Topics: Water, Wildlife, Beaver Dams, Beavers, Hands-on, Indoor Activity, Logjam, Making a Model.