Egg Floats in Salt Water

Egg sinks in one and floats in the other. Ask students to predict what will happen. Put egg in fresh water then concentrated salt water. Key idea: Dissolved salt increases water density and buoyant force. Ask: Did the egg change—or the water? Safety and cleanup: Wash hands after raw egg handling. https://www.google.com/search?q=%22Egg+Floats+in+Salt+Water%22+science+demonstration+experiment