MAKIN' Fossils

What is a fossil?
A fossil is the bi-product of a living thing and over 5,000 years old.
Materials:
Cups
59g Sand
1ibs of Plaster of Paris
1.5cup of Water
Shells
sticks

We mixed the sand and water and the slowly mixed the plaster of paris. We added more water, as needed. Once the mixture was had the consistency of pancake mix, we added the shells and then let it sit over the weekend. TADA Fossils!

Revised:
We used the same recipe for all our fossils. They were all pretty easy to get out, but none of them left very good impressions.
The recipe that worked best was Kelsey's and they uses 1/2 sand and 1/2 plaster, mixing in water as needed.  They were able to get great impressions and got them out easily.