Plaster Cast Dinosaur Footprints

by Jane (follow)
Any Age (405)      Medium (247)      Dinosaur (16)      Plaster (13)      Plaster of Paris (12)      Footprint (8)      Mould (7)     
We recently visited the Pitt Rivers Museum in Oxford and loved the dinosaur footprint trail in the grounds of the museum. They are sunken casts of fossilised Megalosaurus footprints discovered in a nearby quarry.



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Dinosaur footprint casts at the Pitt Rivers Museum, Oxford


We made our own dinosaur footprint casts using plaster of Paris which we then buried in our garden.



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Our homemade version


Time: 15 minutes plus 24 hours to set
Age: Any age
Level: Medium

Materials
Plaster of Paris
Old play dough or modelling clay
Tubs (same size as you want the casts to be - we recycled some food packaging)
Disposable tub to prepare the plaster

Method
Make dinosaur feet out of old play dough or modelling clay. They should fit into your casting tubs.



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Press a modelling clay foot into each tub.



Pitt rivers dinosaur footprints, cast dinosaur footprints, dinosaur footprints, oxford dinosaur footprints


Prepare the plaster of Paris in a disposable tub (you won't want to wash any left overs down the sink). We used 2 parts plaster to 1 part water.
Pour the plaster into the casting tubs over the dinosaur feet, covering them completely.



Pouring plaster over the dinosaur footprint mould




Pouring plaster over the dinosaur footprint mould


Allow to harden for 24 hours.
When set, pop the cast out of the tub.



Pouring plaster over the dinosaur footprint mould
Set castings


Pull the modelling clay foot out of the plaster casting. You might need to use a spoon to dig it out a bit but it shouldn't stick to the set plaster.



Pouring plaster over the dinosaur footprint mould


Your dinosaur footprints casts are complete! Sink them into some soil for some garden fun.



Plaster cast dinosaur footprint, making a Dino footprint, plaster of Paris dinosaur footprint




Plaster cast dinosaur footprint, making a Dino footprint, plaster of Paris dinosaur footprint


Categories
#Plaster
#Plaster of Paris
#Dinosaur
#Footprint
#Mould
#Medium
#Any age
 
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