Dinosaur Fossils

We had a go at making some dinosaur fossils.

We mixed up some plaster of paris as our 'lava' or 'mud'.

We pushed the plastic dinosaurs into a sand base as if they had died there. Then we poured the 'lava' over them and let it harden. 

Soon we had dinosaur 'remains' in the hard rock. It gave us a bit of an idea how fossils could have been left behind for scientists to study. 

Some of our dinosaurs were pushed into playdough. (We pretended this was soft mud.) They left an imprint. This hardened and then more mud (plaster of paris again, we love that stuff!) flowed into the imprint. Over time this hardened into rock and then we separated the layers to see the dinosaur imprint. It was fun to make our 'fossilised' dinosaurs.