Brew up a Storm
Now the fun part. And arguably the easiest part. Time to gather everyone around.
Take one of your Alka-Seltzer tablets, and break it in four. We don’t want to create too much of a storm this first go-around.
Now drop 2 of those pieces into the jar and watch the storm take place! It should go on for 45 seconds or so. But how is this happening?!? Take some guesses.
The ingredients in the tablet create a chemical reaction with the water forming bubbles full of gas. Those bubbles grab a hold of your “snow” (with your glitter and blue dye) and naturally want to rise up. The molecules in the bubbles still repel the oil, so they float up past the oil. Once the bubbles reach the surface, they pop, releasing the gas (hence the fizz), and the “snow” mixture drops back down.
Best of all, because the oil and water will never mix, you can wait for the snow to settle, then drop the other half of your tablet in for round two. Take a video and share it with us!
When you’re done for the day, put the lid on and store it away, then reactivate your storm any time you like. Pop in another tablet, and watch it snow! If you run out of water at the bottom, you can just add more. It’ll sink right down, but you all know that now.