We used playdough, shells, plastic dinos, and plaster of paris to create our fossil. After pressing the playdough into the bottom of a small cup, we imprinted a shell and dinosaur shape. Then plaster of pairs was mixed and poured on top of the prints. The next day we excavated our dinosaurs by pulling off the clay and using tooth picks to get into the small areas.
I will say that the fossils their year were a little rough around the edges. Hence no up and close pics of them because they really were had to see. My plans of using the black playdough from Halloween didn't go as smooth as I thought. What else are you supposed to use back playdough for? Looks kind of like dirt & using it for our other playdough play just didn't seem inviting. Truth be told, fresh new black playdough is about the most sticky thing in the entire world and does not come off of anything very easily. In the past I've used modeling clay for this project, much more firm, and will do so again in the following years. Lesson totally learned! At least the kids still had fun with this one.
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