1. The document describes an experiment where oil is poured into a bottle with water to demonstrate that oil floats on water due to being less dense. 2. Adding food coloring shows that it mixes with the water but not the oil. 3. Dropping an Alka-Seltzer tablet into the bottle produces gas bubbles that cause the colored water and oil to move around in a "lava lamp" effect, as the gas escapes and the water sinks back down.