Plaster of Paris, empty spread dish, vaseline, leaf.



Smear leaf and dish with Vaseline. Place the leaf in the middle of the dish. Mix Plaster of Paris and pour over leaf. Wait 10 minutes. Turn out.

Hints: Real fossils are made in a few different ways. This method simulates what is known as the “Moulds or casts” where a shell embedded in a rock may be dissolved by ground water and leave a cavity preserving the shape of the shell. This is a natural external mould or imprint of the shell’s exterior.
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