Here is how I made a realistic fossil matrix for my children to excavate. Use this as part of a fossil excavation activity. The first time you do this I highly recommend making a small trial matrix first using a few rocks instead of fossils - something about the size of your hand, just so you know how much of your natural materials to use, how quickly to you expect it to dry.
When you are done you'll have a realistic looking "rock" with fossils embedded. It should be hard enough that use of a hammer and pick might be warranted, but not so hard that it frustrates the kids |
What you'll need
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What to do
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