Uploaded May 2020 | Updated September 2026, 3 weeks ago
Want to wow your kids with an incredibly simple lava lamp? Check out this quick and easy experiment!
Equipment: glass, sparkling water, raisins.
Carefully pour some carbonated water into a glass. Toss in some mini raisins. The raisins begin to rise and fall – it looks like a lava lamp!
Raisins have a rough surface. The carbon dioxide dissolved in sparkling water is actively released on this surface. Bubbles of gas accumulate on the surface of the raisins and lift them up. As soon as they reach the surface, the bubbles burst and the raisins fall. More carbon dioxide forms on their surfaces, and the cycle repeats.
Cool experiments are waiting for you in the MEL Chemistry subscription!
Safety precautions: Warning! Only under adult supervision.
Want to wow your kids with an incredibly simple lava lamp? Check out this quick and easy experiment!
Equipment: glass, sparkling water, raisins.
Carefully pour some carbonated water into a glass. Toss in some mini raisins. The raisins begin to rise and fall – it looks like a lava lamp!
Raisins have a rough surface. The carbon dioxide dissolved in sparkling water is actively released on this surface. Bubbles of gas accumulate on the surface of the raisins and lift them up. As soon as they reach the surface, the bubbles burst and the raisins fall. More carbon dioxide forms on their surfaces, and the cycle repeats.
Cool experiments are waiting for you in the MEL Chemistry subscription!
Safety precautions: Warning! Only under adult supervision.
