This hands-on lab engages students in exploring the process of osmosis and water potential (Ψ) using de-shelled chicken eggs as model cells. By comparing changes in egg mass and volume in distilled water and corn syrup, students gain a clear understanding of tonicity, solute potential (Ψs), and cellular homeostasis. The activity reinforces key concepts in cell transport and helps students connect microscopic processes to real-world examples such as IV fluids, dehydration, and plant water balance