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Demonstrate the Effects of the Environment on Migration Patterns of Salmon

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Learn how to use a dichotomous key.

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Determine the M & N antigens of unknown blood samples.

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A Powerful Introduction to the Concept of Thermochemistry

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Two investigations teach the principles of chromatography.

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Look for Macro- and Microorganisms in Soil Samples Your Class Collects

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Students Track the Trends in the Weather

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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.

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Explore the Factors That Affect Decomposition

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Provide insight into evolution.

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