What happens if you mix cooking oil, water, food coloring, and Alka Seltzer? We know cooking oil and water have different densities; water sinks to the bottom and oil floats on top. The food coloring mixes with the water. The Alka Seltzer produces a chemical reaction releasing carbon dioxide. The gas makes bubbles of colored water dance up into the cooking oil like a lava lamp. Check it out!
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