How can you make science model?

you would first probably need an actual skeleton to create a full mold of the skeleton you wish to model. You would then have to select the material you want the model to be made of such as plaster of Paris, plastic, clay, etc. Once you have successfully fitted all of the molds with the material of your choice your would then have to harden the mold. Depending on what kind of skeleton model you are making and which material you used, you may have to find a way to connect and remove the molded parts after allowing them to dry.