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Hard boil some eggs, (amount depends on number of children) and get dirt from outside. Put the dirt 2 to 3 inches thick in your sensory table, or another large tub or baking tray. Add water, mix it to mud, and add the eggs. Push some of the eggs down so that they are completely under the mud, and leave others so that the tops are showing. Allow the mud to dry. (Set it in the sun to speed up the process, or add a heat lamp, or bake the mud in the oven at 150 degrees until dry if you used baking trays as a container.) When it is set, you’ll have what looks like a nest of fossilized dinosaur eggs. Provide the kids with dry paint brushes, old tooth brushes, as well as butter knives or other kid safe metal tools to scrape away mud, as they try to extract the eggs from the dried mud. Use this time to talk about the work a paleontologist does.
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