Have you even made a fossil? We started to today. We're using gummy bears and bread. Pretend the bread is layers of sand and mud (sedimentary rocks) and the gummy bears are the bones, or bugs, or leaves, or other things that get fossilized. We layered the bears and bear, we added a lot of pressure, we made observations this afternoon, and then decided our fossils needed a little more time to fossilize. This is what we found so far...
The gummy bears left their imprints on the bread.
The bread got hard where the gummy bears were pressing.
The gummy bears got really sticky.
The gummy bears left rings on the paper, like glue.
The darker colored gummy bears left their color on the bread.