In this activity, designed by Rick Crosslin, students separate microfossils from an Ordovician-age dry clay soil sample and then observe them using hand lenses and/or stereomicroscopes.
Students discover how fossils are formed, learn why they are important to us and what they can tell us about the Earth's past by casting and painting four life-size fossil replicas based on actual specimens:. 3" shark tooth, 4" crinoid, 3" trilobite and a 3" ammonite.
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