Homemade Lava Lamp

This video tutorial explains how to create a homemade lava lamp using simple materials like vegetable oil, water, food coloring, and Alka Seltzer tablets. The process demonstrates the concept of density, showing how oil and water do not mix, and how Alka Seltzer tablets create a bubbling effect that mimics a lava lamp. The tutorial provides step-by-step instructions, safety tips, and suggests enhancing the visual effect by dimming lights and using a small light source.

What effect does adding food coloring to the water have in the lava lamp?

How can you enhance the visual effect of the lava lamp during the demonstration?