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In this activity, learners collect, analyze, and interpret information about objects in order to classify them into a cladogram. Use this activity to talk about how scientists classify things.

In this lab activity, learners explore how to initiate a density current. Learners measure six flasks with different concentrations of salt and water (colored blue).

In this activity, learners play an evolution card game to see how selective pressures can affect an organism's evolution.

This experiment is designed to illustrate how fluids, including water, have the ability to flow.