Choose a few objects to fossilize. Chicken
bones, leaves, rocks, and seashells all make good fossils. Now you have to
create the cast to put the fossil in. Mix together in a disposable bowl 1 cup of
Plaster of Paris and ½ cup of water. Wait until you see the cast start to harden
up before pressing your fossil down into it. Lift the fossil straight up and out
of the cast. You'll see the impression left behind. Wait for the cast to
completely dry out before removing it from the bowl and putting it on display
somewhere in the house. Painting the fossil is optional.