Here's what you'll need!
Combine 2 cups of water with 2 grams of sodium alginate. Add food coloring if desired. Mix thoroughly with a hand blender.
Set aside sodium alginate solution for at least 15 minutes to let air bubbles trapped in the solution disappear from the solution.
Create the calcium chloride bath by combining 4 cups of water with 5 grams of calcium chloride. Blend together until clear. Make sure the blender has been thoroughly cleaned before creating your bath.
Using a tablespoon, carefully take a tablespoon worth of your sodium alginate solution and submerge it in your calcium chloride solution. Make sure your tablespoon is clean before submerging it into your calcium chloride bath.
Let the sodium chloride bubble sit in the bath for at least 2 minutes.
Use a slotted spoon to remove the bubble from the bath.
Rinse in clean water to stop the reaction.
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