Fossil Posters

After visiting the Orton Hall Geology Museum on the OSU campus, we made our own fossil posters. The kids used a plastic skeleton of a dinosaur and a seashell to make the four different kinds of fossils!

Mold Fossil:  A depressed mold, indentation of animal/plant.

Cast Fossil: A filled in mold, mud or other things filled in the fossil and left the imprint.

Trace Fossil: Evidence of something they left behind, scat, tracks, etc.

True Form Fossil:  The entire animal/plant is fossilized.

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