Students will better understand how fossils are created by making their own.
- plaster of paris
- paper plates
- objects to make impressions of (leaves, shells, twigs, grass, flowers, etc.)
- paint (optional)
- Explain to students about fossilization.
Fossilization:The preservation of the remains or an imprint of a living organism in a geological structure.
- Pour out plaster of paris into the paper plates. (you might want to do this ahead of time).
- Have students pressing items into the plaster of paris and lifting them up right away to make impressions.
- Explain to students that normally, fossils are created when the object decomposes.
- Let plaster dry.
- Paint if you would like. Try using different coloured paint for each impression.
- Variation:Wrap a plaster of paris ball around a small plastic object (eg: toy for birthday bags like dinosaurs, spiders, etc.). Crack the ball carefully and you should see an impression of the object in the plaster.