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Export 4 ingredients for grocery delivery
Step 1
Freeze the baking soda for an hour or more.
Step 2
Place the baking soda in a large bowl and stir in half a cup of water. Mix until thoroughly combined. Mixture should resemble wet snow.
Step 3
Dump the snow onto a baking sheet or play area. Make snowballs or build snowmen!
Step 4
Fill tall glasses a third of the way full of vinegar. Add a drop of food coloring to each glass.
Step 5
Drop snowballs in the glasses of vinegar and watch them fizzle and pop!
Step 6
For a dense, foamy effect, add a squirt of dish soap to the vinegar before dropping the snowballs in.