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Grade: 7-8

Age: 12-14

Activity Summary:

What You Need:

• 1 part Plaster of Paris
• 1 part water
• shoe box
• oil
• found objects: leaves, twigs buttons

What You Do:

1. Prepare the materials before starting the activity. Students must wear protective gloves when mixing the mixture.
2. For the mixture, mix 1 part of plaster of paris and 1 part water. The mixture must be smooth and thick (not watery)
3. Dip found objects into the oil and place gently on the mixture.
4. Do not press hard or it will sink, making it hard to remove when the plaster gets stiff.
5. Leave the mixture for hours. One entire day under the heat of the sun makes it strong and durable.
6. When the mixture is dry, remove the objects.
7. You will see the marks of the objects or " fossil".
8. Paint the fossil and display the finished work.

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