"Investigating Osmotic Rates" is a hands-on, inquiry-based investigation that allows students to visually explore many of the aspects that affect osmosis and diffusion, with particular focus on osmotic rates. While it is intended for both the high school and the college level, it is likely best suited for the introductory college laboratory. It is designed to help students understand the fundamental advanced aspects of osmosis and diffusion. The class, divided into different expert teams, has the opportunity to investigate effects of solute concentration on osmotic rate, electrolytes versus natural solutes, and the effects of enzymes on osmotic rates. After completing the investigations, each expert team shares their results with the rest of the class for discussion and comparison. Students then analyze pooled results by creating a master graph looking at the impact on osmotic rate and then reflecting upon a series of higher-order questions.

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