Make Your Own Lava Lamp
Learn how to make a lava lamp with this fun science experiment for budding scientists of all ages. In this experiment, you will use materials that you more than likely have on hand at home right now to create chemical reactions which cause colorful balls to move about and resemble an actual lava lamp.
Explore the wonders of the world of density. The water and the oil separate from each other because water is more dense than oil. The piece of Alka-Seltzer tablet you drop in after releases small bubbles of carbon dioxide gas that rise to the top and take some of the colored water along for the ride. The gas escapes when it reaches the top and the colored water falls back down creating a fascinating display.
How to Make It