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slug Created with Sketch. Experiment Kitchen Mystery . . . Solved!

Kitchen Mystery . . . Solved!

What happens inside biscuits and cookies as they bake? They go into the oven as thick dough. Then baking soda or baking powder makes them inflate: tiny pockets of air form inside the dough, making it rise. This experiment exposes the mystery of the rising dough.

What You’ll Need
  • 1 teaspoon baking soda
  • 1 teaspoon baking powder
  • 4 small cups or containers
  • 2 tablespoons vinegar
What to Do
  1. Place the baking soda into one cup and the baking powder into a separate cup.
  2. Place 1 tablespoon of vinegar into each of the other two cups.
  3. Pour the vinegar over the powders at the same time.
  4. Watch what happens.
How It Works


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