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Prince George's Community College: Reading the Rock Record [Pdf]
This is an in-depth activity where students create a rock layer formation using different colors of playdough and investigate the types of folds and rock formations that might occur. They take core samples through anticlines and...
American Geosciences Institute
American Geosciences Institute: Earth Science Week: Exploring Porosity
Experiment to find out which size of gravel has the most porosity by measuring volume.